CN108656943A - A kind of automotive oil tank safety detection device - Google Patents

Abstract

The invention discloses a kind of automotive oil tank safety detection devices, its structure includes oil cap, oil outlet, explosion-protection equipment, fuel tank, holder, alcohol tank, leakage warning device, top of oil-tank is equipped with oil cap, oil outlet, fuel tank is located in alcohol tank, fuel tank both sides are fixedly connected by holder with alcohol tank, leakage warning device is located in alcohol tank and is mounted on tank bottoms, and top of oil-tank is connected with explosion-protection equipment, the beneficial effects of the invention are as follows：Cover board is opened by the effect of air pressure, fuel tank is set to lose the necessary condition of explosion, avoid the generation of explosion, explosion-proof effect is good, the density ratio alcohol by oil is small, and the oil of leakage improves the liquid level of alcohol, it can amplify distance when liquid level carries out small variation by position transmission device, lifting body, so that alarm is powered and carry out warning reminding car owner, prevent the generation for firing fiery event, improves safety in utilization.

Description

A kind of automotive oil tank safety detection device

Technical field

The present invention relates to auto parts field, specifically a kind of automotive oil tank safety detection device.

Background technology

With the development of modern transportation, the vehicles are increasing in people's lives, and people’s lives level is got over Come it is higher, trip also walk to bicycle, motorcycle from pervious, automobile till now；Automobile is in most of family at present It can see；For running safety, a problem of people's attention is also become.

Fuel tank safety detection device prevents from exploding using the method for reducing oxygen at present, and the premise of explosion must be close In the environment closed, the leakproofness of existing safety detection device still remains, and explosion-proof effect is poor, and existing safety detection device is not It is enough perfect, can not detect fuel tank whether oil leak, oil leak is easy to cause event on fire, crisis personal safety.

Invention content

It is a primary object of the present invention to overcome the deficiencies of the prior art and provide a kind of automotive oil tank safety detection device.

The present invention adopts the following technical scheme that realize：A kind of automotive oil tank safety detection device, structure include oil cap, Oil outlet, explosion-protection equipment, fuel tank, holder, alcohol tank, leakage warning device, the top of oil-tank are equipped with oil cap, oil outlet, institute It states fuel tank to be located in alcohol tank, the fuel tank both sides are fixedly connected by holder with alcohol tank, and the leakage warning device is located at In alcohol tank and be mounted on tank bottoms, the top of oil-tank is connected with explosion-protection equipment, the leakage warning device by alarm, Contact, insulating base, elastic force apparatus, liquid level transmission device, expansion bracket, lifting body, synchronous pushing meanss, holding meanss, metal Piece forms, and the alarm is mounted on the outside of fuel tank, and the alarm with two contacts by being electrically connected, pacify respectively by two contacts It mounted in insulating base bottom, is fixedly connected at the top of the insulating base and expansion bracket, fixes and connect with tank bottoms at the top of the expansion bracket It connects, sheet metal is equipped with below the contact, the both sides of the sheet metal are hinged with synchronous pushing meanss respectively, and described synchronize pushes away Dynamic device is matched with holding meanss, and the synchronous pushing meanss are hinged with lifting body, and the lifting body is passed with liquid level Dynamic device is meshed, and the liquid level transmission device is slidably connected with elastic force apparatus, and the liquid level transmission device is mounted on expansion bracket It is interior.

As an optimization, the expansion bracket is made of kickboard, gravity block, telescopic rod guide post, arc panel, connecting rod, the arc Shape plate is fixed by the connecting rod in tank bottoms, and the both sides of the arc panel are connected by telescopic rod guide post with kickboard respectively, The kickboard bottom is equipped with gravity block.

As an optimization, the liquid level transmission device is by strut, two connecting rods, hinged disk, rack, driving gear, driving wheel, biography Dynamic band, driven wheel, driven gear composition, the strut and kickboard vertical connection, the strut top pass through two connecting rods and arc Plate is hinged, and the infall of two connecting rod is flexibly connected with hinged disk, and the hinged disk is fixedly connected with rack, the rack It rides upon above driving gear and is meshed therewith, the elastic force apparatus being slidably connected therewith, the master are equipped with above the rack Moving gear is concentric circles with driving wheel and the two is fixedly connected, and the driving wheel is sequentially connected by transmission belt and driven wheel, institute It states driven wheel to be connected on same axis with driven gear, the driven gear is meshed with lifting body.

As an optimization, the elastic force apparatus is made of telescopic, spring lever, pulley, and the telescopic is fixed with arc panel It is matched at the top of connection, the telescopic and spring lever, the spring lever bottom is equipped with pulley, the sliding wheel and rack back side It is slidably connected.

As an optimization, the holding meanss are made of guide rail, sliding sleeve, horizontal slide rail, fixed plate, and the fixed plate both sides are logical Guide rail is crossed to be fixedly connected with arc panel, the horizontal slide rail is mutually parallel with fixed plate, the horizontal slide rail both ends respectively with cunning Set is fixedly connected, and the sliding sleeve is set on guide rail with matching, and the horizontal slide rail is matched with synchronous pushing meanss.

As an optimization, the lifting body is by sector, bull stick, the second hinged seat, elevator, the second pin, spring, top Bar, jacking guide sleeve, jacking block composition, the sector are connected to bull stick left end, the bull stick with mounted on fixed plate bottom Second pin is hinged, and the bull stick right end is equipped with to be fixedly connected on the matched sliding slot of the second pin, second pin On elevator, the elevator is connected with mandril bottom, is fixedly connected with jacking block through jacking guide sleeve at the top of the mandril, The jacking block is hinged with synchronous pushing meanss, and the jacking guide sleeve is vertically connected in fixed plate, the elevator with it is solid Fixed board is equipped with spring, and the spring is set in mandril outer surface.

As an optimization, the synchronous pushing meanss set there are two and are symmetrically distributed in jacking guide sleeve both sides, and described synchronize pushes away Dynamic device is made of connecting rod, sliding block, arc-shaped slide rail, the first motion bar, movable block, the second motion bar, one end of the connecting rod with Jacking block be hinged, the connecting rod other end is hinged on sliding block, and the sliding block is located among the first motion bar, the sliding block with Arc-shaped slide rail is slidably connected, and first motion bar bottom is hinged in fixed plate, passes through second at the top of first motion bar Motion bar is hinged with sheet metal, and first motion bar is flexibly connected with the junction of the second motion bar with movable block, described Movable block is matched with horizontal slide rail.

As an optimization, the explosion-protection equipment is by diaphragm seal, sphere, pin, guide post, guide sleeve, holder, hinge axis, swing rod, cunning Wheel group, drawstring, otic placode, cover board composition, the top of oil-tank are equipped with opening, and the opening is connected with diaphragm seal, the diaphragm seal It is equipped with sphere, the sphere is connected to guide post bottom, is matched with guide sleeve at the top of the guide post, the guide sleeve both sides are connected with Holder is equipped with hinge axis on the holder, and the hinge axis is hinged with swing rod, one end of the swing rod and is connected to guide post Pin match, the swing rod other end is connected with drawstring head end, and the drawstring tail end is around pulley blocks and being welded on lid Otic placode on plate is connected, and the cover board is connect with the open hinge that top of oil-tank is equipped with.

Advantageous effect

The present invention by the effect of air pressure, makes diaphragm seal expand, will lead in use, when air pressure increases in fuel tank Column is pushed away into guide sleeve, band driven fork swing pull cover board turn over, destroy the seal of fuel tank, avoid explosion generation, guide post with The cooperation of guide sleeve can make guide post keep vertical direction movement, the cooperation of swing rod and hinge axis can realize small distance drive greatly away from From；Occur oil leak when, due to oil density be more than alcohol, alcohol tank bottom will be sunk to, when oil leaks into it is a certain amount of when, can make Alcohol liquid level in alcohol tank rises, to push kickboard to move up, when arc panel design is to there is leakage above arc panel just It is imported in alcohol tank with by oil, telescopic rod guide post can be to the effect that kickboard is oriented to, and two connecting rods are shunk when kickboard moves up, and are drawn Carry-over bar drives driving gear rotation, provides power for synchronous pushing meanss, elastic force apparatus can make rack that driving gear be kept to nibble Conjunction state is realized by transmission belt and is accelerated, and drives the rotation of bull stick short end, is further accelerated, jacking block is made to move up needs Highly, the synchronization pushing meanss of both sides are pulled to make sheet metal and contact pad, alarm energization, which sounds the alarm, carries out car owner Warning, holding meanss can make two synchronous pushing meanss remain synchronous working, ensure that sheet metal remains horizontal, lead to Leakage warning device can be resetted by crossing spring.

Compared with prior art, the beneficial effects of the invention are as follows：Cover board is opened by the effect of air pressure, so that fuel tank is lost quick-fried Fried necessary condition avoids the generation of explosion, and explosion-proof effect is good, the density ratio alcohol by oil is small, and the oil of leakage improves wine Essence liquid level, by position transmission device, lifting body can liquid level carry out small variation when amplify distance, make alarm be powered into Row warning reminding car owner prevents the generation for firing fiery event, improves safety in utilization.

Description of the drawings

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention, Objects and advantages will become more apparent upon：

Fig. 1 is a kind of structural schematic diagram of automotive oil tank safety detection device of the present invention.

Fig. 2 is the cross-sectional view of Fig. 1.

Fig. 3 is the working state structure schematic diagram of Fig. 1.

Fig. 4 is the refinement structural schematic diagram of leakage warning device of the present invention.

In figure：Oil cap 1, oil outlet 2, explosion-protection equipment 3, fuel tank 4, holder 5, alcohol tank 6, leakage warning device 7, alarm 70, contact 71, insulating base 72, elastic force apparatus 73, liquid level transmission device 74, expansion bracket 75, lifting body 76, synchronous pushing meanss 77, holding meanss 78, sheet metal 79, kickboard 750, gravity block 751, telescopic rod guide post 752, arc panel 753, connecting rod 754, branch Bar 740, two connecting rods 741, hinged disk 742, rack 743, driving gear 744, driving wheel 745, transmission belt 746, driven wheel 747, Driven gear 748, telescopic 740, spring lever 731, pulley 732, guide rail 780, sliding sleeve 781, horizontal slide rail 782, fixed plate 783, sector 760, bull stick 761, the second hinged seat 762, elevator 763, the second pin 764, spring 765, mandril 766, top Rise guide sleeve 767, jacking block 768, connecting rod 770, sliding block 771, arc-shaped slide rail 772, the first motion bar 773, movable block 774, second Motion bar 775, diaphragm seal 30, sphere 31, pin 32, guide post 33, guide sleeve 34, holder 35, hinge axis 36, swing rod 37, pulley blocks 38, drawstring 39, otic placode 310, cover board 311.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

- 4 are please referred to Fig.1, the present invention provides a kind of automotive oil tank safety detection device technical solution：Its structure includes oil cap 1, oil outlet 2, explosion-protection equipment 3, fuel tank 4, holder 5, alcohol tank 6, leakage warning device 7, the top of the fuel tank 4 be equipped with oil cap 1, Oil outlet 2, the fuel tank 4 are located in alcohol tank 6, and 4 both sides of the fuel tank are fixedly connected by holder 5 with alcohol tank 6, described to let out It fails to report alarm device 7 and is located in alcohol tank 6 and is mounted on 4 bottom of fuel tank, 4 top of the fuel tank is connected with explosion-protection equipment 3, described to let out Alarm device 7 is failed to report by alarm 70, contact 71, insulating base 72, elastic force apparatus 73, liquid level transmission device 74, expansion bracket 75, jacking Mechanism 76, synchronous pushing meanss 77, holding meanss 78, sheet metal 79 form, and the alarm 70 is mounted on 4 outside of fuel tank, institute Alarm 70 is stated with two contacts 71 by being electrically connected, two contacts 71 are separately mounted to 72 bottom of insulating base, the insulating base 72 are fixedly connected with 75 top of expansion bracket, and 75 top of the expansion bracket is fixedly connected with 4 bottom of fuel tank, and 71 lower section of the contact is set There is sheet metal 79, the both sides of the sheet metal 79 to be hinged respectively with synchronous pushing meanss 77, the synchronous pushing meanss 77 with Holding meanss 78 match, and the synchronous pushing meanss 77 are hinged with lifting body 76, and the lifting body 76 is passed with liquid level Dynamic device 74 is meshed, and the liquid level transmission device 74 is slidably connected with elastic force apparatus 73, and the liquid level transmission device 74 is installed In expansion bracket 75.

The expansion bracket 75 is by kickboard 750, gravity block 751, telescopic rod guide post 752, arc panel 753,754 groups of connecting rod At the arc panel 753 is fixed on 4 bottom of fuel tank by connecting rod 754, and the both sides of the arc panel 753 are respectively by flexible Bar guide post 752 is connected with kickboard 750, and 750 bottom of the kickboard is equipped with gravity block 751.

The liquid level transmission device 74 by strut 740, two connecting rods 741, hinged disk 742, rack 743, driving gear 744, Driving wheel 745, transmission belt 746, driven wheel 747, driven gear 748 form, the strut 740 and 750 vertical connection of kickboard, institute It states 740 top of strut to be hinged with arc panel 753 by two connecting rods 741, infall and the hinged disk 742 of two connecting rod 741 Flexible connection, the hinged disk 742 is fixedly connected with rack 743, the rack 743 ride upon above driving gear 744 and with Be meshed, the top of the rack 743 is equipped with the elastic force apparatus 73 being slidably connected therewith, the driving gear 744 and driving wheel 745 be concentric circles and the two is fixedly connected, and the driving wheel 745 is sequentially connected by transmission belt 746 and driven wheel 747, described Driven wheel 747 is connected to driven gear 748 on same axis, and the driven gear 748 is meshed with lifting body 76.

The elastic force apparatus 73 is made of telescopic 740, spring lever 731, pulley 732, the telescopic 740 and arc panel 753 are fixedly connected, and the telescopic 740 is matched with 731 top of spring lever, and 731 bottom of the spring lever is equipped with pulley 732, the pulley 732 is connect with 743 Dorsal glide of rack.

The holding meanss 78 are made of guide rail 780, sliding sleeve 781, horizontal slide rail 782, fixed plate 783, the fixed plate 783 both sides are fixedly connected by guide rail 780 with arc panel 753, and the horizontal slide rail 782 is mutually parallel with fixed plate 783, described 782 both ends of horizontal slide rail are fixedly connected with sliding sleeve 781 respectively, and the sliding sleeve 781 is set on guide rail 780 with matching, The horizontal slide rail 782 is matched with synchronous pushing meanss 77.

The lifting body 76 is by sector 760, bull stick 761, the second hinged seat 762, elevator 763, the second pin 764, spring 765, mandril 766, jacking guide sleeve 767, jacking block 768 form, and the sector 760 is connected to 761 left end of bull stick, The bull stick 761 is hinged with the second pin 764 mounted on 783 bottom of fixed plate, and 761 right end of the bull stick is equipped with and second 764 matched sliding slot of pin, second pin 764 are fixedly connected on elevator 763, the elevator 763 and mandril 766 bottoms are connected, and 766 top of the mandril is fixedly connected through jacking guide sleeve 767 with jacking block 768, the jacking block 768 Be hinged with synchronous pushing meanss 77, the jacking guide sleeve 767 is vertically connected in fixed plate 783, the elevator 763 with it is solid Fixed board 783 is equipped with spring 765, and the spring 765 is set in 766 outer surface of mandril.

The synchronous pushing meanss 77 set there are two and are symmetrically distributed in 767 both sides of jacking guide sleeve, and synchronous push fills 77 are set to be made of connecting rod 770, sliding block 771, arc-shaped slide rail 772, the first motion bar 773, movable block 774, the second motion bar 775, One end of the connecting rod 770 is hinged with jacking block 768, and 770 other end of the connecting rod is hinged on sliding block 771, the sliding block 771 are located among the first motion bar 773, and the sliding block 771 is slidably connected with arc-shaped slide rail 772,773 bottom of the first motion bar Portion is hinged in fixed plate 783, and first motion bar, 773 top is hinged by the second motion bar 775 with sheet metal 79, institute It states the first motion bar 773 to be flexibly connected with movable block 774 with the junction of the second motion bar 775, the movable block 774 and level Sliding rail 782 matches.

The explosion-protection equipment 3 by diaphragm seal 30, sphere 31, pin 32, guide post 33, guide sleeve 34, holder 35, hinge axis 36, Swing rod 37, pulley blocks 38, drawstring 39, otic placode 310, cover board 311 form, and 4 top of the fuel tank is equipped with opening, the opening connection There are diaphragm seal 30, the diaphragm seal 30 to be equipped with sphere 31, the sphere 31 is connected to 33 bottom of guide post, 33 top of the guide post It is matched with guide sleeve 34,34 both sides of the guide sleeve are connected with holder 35, and hinge axis 36, the hinge are equipped on the holder 35 Axis 36 is hinged with swing rod 37, and one end of the swing rod 37 is matched with the pin 32 for being connected to guide post 33, and the swing rod 37 is another One end is connected with 39 head end of drawstring, and 39 tail end of the drawstring is around pulley blocks 38 and 310 phase of otic placode that is welded on cover board 311 Connection, the cover board 311 are connect with the open hinge that 4 top of fuel tank is equipped with.

In use, when air pressure increases in fuel tank 4, by the effect of air pressure, diaphragm seal 30 is made to expand, by guide post 33 It being pushed away into guide sleeve 34, band driven fork 37, which is swung, pulls cover board 311 to turn over, and destroys the seal of fuel tank 4, avoids the generation of explosion, The cooperation of guide post 33 and guide sleeve 34 can make guide post 33 keep vertical direction movement, and the cooperation of swing rod 37 and hinge axis 36 can be real Existing small distance drives big distance；When oil leak occurs, since the density of oil is more than alcohol, 6 bottom of alcohol tank will be sunk to, when oil is let out When draining to a certain amount of, the alcohol liquid level in alcohol tank 6 can be made to increase, to push kickboard 750 to move up, the design of arc panel 753 is It is just imported in alcohol tank 6 with by oil when having leakage for 753 top of arc panel, telescopic rod guide post 752 can carry out kickboard 750 The effect of guiding, two connecting rods 741 are shunk when kickboard 750 moves up, and are pulled rack 743 that driving gear 744 is driven to rotate, are pushed away to synchronize Dynamic device 77 provides power, and elastic force apparatus 73 can make rack 743 keep 744 meshing state of driving gear, real by transmission belt 746 Now accelerate, drives the rotation of 761 short end of bull stick, further accelerated, jacking block 768 is made to move up the height of needs, pull both sides Synchronization pushing meanss 77 so that sheet metal 79 is contacted with contact 71, the energization of alarm 70 sounds the alarm and is warned to car owner, Holding meanss 78 can make two synchronous pushing meanss 77 remain synchronous working, ensure that sheet metal 79 remains horizontal, Leakage warning device 7 can be resetted by spring 765.

The technological progress that the present invention obtains compared with the prior art is：Cover board is opened by the effect of air pressure, fuel tank is made to lose The necessary condition of explosion avoids the generation of explosion, and explosion-proof effect is good, the density ratio alcohol by oil is small, and the oil of leakage improves The liquid level of alcohol can amplify distance when liquid level carries out small variation by position transmission device, lifting body, alarm is made to be powered Warning reminding car owner is carried out, the generation for firing fiery event is prevented, improves safety in utilization.

Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc. With replacing, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this Within the protection domain of invention.

Claims (8)

1. a kind of automotive oil tank safety detection device, structure includes oil cap, oil outlet, explosion-protection equipment, fuel tank, holder, alcohol Case, leakage warning device, it is characterised in that：

The top of oil-tank is equipped with oil cap, oil outlet, and the fuel tank is located in alcohol tank, and the fuel tank both sides pass through holder and wine Smart case is fixedly connected, and the leakage warning device is located in alcohol tank and is mounted on tank bottoms, and the top of oil-tank is connected with Explosion-protection equipment；

The leakage warning device is by alarm, contact, insulating base, elastic force apparatus, liquid level transmission device, expansion bracket, jack Structure, synchronous pushing meanss, holding meanss, sheet metal composition, the alarm are mounted on the outside of fuel tank, the alarm and two By electrical connection, two contacts are separately mounted to insulating base bottom, be fixedly connected at the top of the insulating base and expansion bracket, institute contact State and be fixedly connected with tank bottoms at the top of expansion bracket, equipped with sheet metal below the contact, the both sides of the sheet metal respectively with Synchronous pushing meanss are hinged, and the synchronous pushing meanss are matched with holding meanss, the synchronous pushing meanss and jack Structure is hinged, and the lifting body is meshed with liquid level transmission device, and the liquid level transmission device is slidably connected with elastic force apparatus, The liquid level transmission device is mounted in expansion bracket.

2. a kind of automotive oil tank safety detection device according to claim 1, it is characterised in that：The expansion bracket is by floating Plate, gravity block, telescopic rod guide post, arc panel, connecting rod composition, the arc panel are fixed by the connecting rod in tank bottoms, institute The both sides for stating arc panel are connected by telescopic rod guide post with kickboard respectively, and the kickboard bottom is equipped with gravity block.

3. a kind of automotive oil tank safety detection device according to claim 1, it is characterised in that：The liquid level transmission device It is made of strut, two connecting rods, hinged disk, rack, driving gear, driving wheel, transmission belt, driven wheel, driven gear, the strut With kickboard vertical connection, be hinged with arc panel by two connecting rods at the top of the strut, the infall of two connecting rod with hingedly Disk activity connects, and the hinged disk is fixedly connected with rack, and the rack rides upon above driving gear and is meshed therewith, institute The elastic force apparatus for being equipped with above rack and being slidably connected therewith is stated, the driving gear is concentric circles with driving wheel and the two is fixed and connected It connecing, the driving wheel is sequentially connected by transmission belt and driven wheel, and the driven wheel is connected to driven gear on same axis, The driven gear is meshed with lifting body.

4. a kind of automotive oil tank safety detection device according to claim 1 or 3, it is characterised in that：The elastic force apparatus It is made of telescopic, spring lever, pulley, the telescopic is fixedly connected with arc panel, the telescopic and phase at the top of spring lever Cooperation, the spring lever bottom are equipped with pulley, the sliding wheel and rack Dorsal glide connection.

5. a kind of automotive oil tank safety detection device according to claim 1, it is characterised in that：The holding meanss are by leading Rail, sliding sleeve, horizontal slide rail, fixed plate composition, the fixed plate both sides are fixedly connected by guide rail with arc panel, described horizontal sliding Rail is mutually parallel with fixed plate, and the horizontal slide rail both ends are fixedly connected with sliding sleeve respectively, and the sliding sleeve is set in match therewith On the guide rail of conjunction, the horizontal slide rail is matched with synchronous pushing meanss.

6. a kind of automotive oil tank safety detection device according to claim 1, it is characterised in that：The lifting body is by fanning Shape tooth, bull stick, the second hinged seat, elevator, the second pin, spring, mandril, jacking guide sleeve, jacking block composition, the sector Be connected to bull stick left end, the bull stick is hinged with the second pin mounted on fixed plate bottom, the bull stick right end be equipped with The matched sliding slot of second pin, second pin are fixedly connected on elevator, and the elevator is connected with mandril bottom It connects, is fixedly connected with jacking block through jacking guide sleeve at the top of the mandril, the jacking block is hinged with synchronous pushing meanss, institute It states jacking guide sleeve to be vertically connected in fixed plate, the elevator is equipped with spring with fixed plate, and the spring is set in outside mandril Surface.

7. a kind of automotive oil tank safety detection device according to claim 1 or 5 or 6, it is characterised in that：Described synchronize pushes away Dynamic device sets there are two and is symmetrically distributed in jacking guide sleeve both sides, the synchronous pushing meanss by connecting rod, sliding block, arc-shaped slide rail, First motion bar, movable block, the second motion bar composition, one end and the jacking block of the connecting rod are hinged, the connecting rod other end It is hinged on sliding block, the sliding block is located among the first motion bar, and the sliding block is slidably connected with arc-shaped slide rail, and described first lives Lever bottom is hinged in fixed plate, is hinged with sheet metal by the second motion bar at the top of first motion bar, and described the One motion bar is flexibly connected with the junction of the second motion bar with movable block, and the movable block is matched with horizontal slide rail.

8. a kind of automotive oil tank safety detection device according to claim 1, it is characterised in that：The explosion-protection equipment is by close Sealer, sphere, pin, guide post, guide sleeve, holder, hinge axis, swing rod, pulley blocks, drawstring, otic placode, cover board composition, the fuel tank Top is equipped with opening, and the opening is connected with diaphragm seal, and the diaphragm seal is equipped with sphere, and the sphere is connected to guide post bottom Portion, the guide post top are matched with guide sleeve, and the guide sleeve both sides are connected with holder, and hinge axis, institute are equipped on the holder Hinge axis is stated to be hinged with swing rod, one end of the swing rod is matched with the pin for being connected to guide post, the swing rod other end with Drawstring head end is connected, and the drawstring tail end is connected around pulley blocks with the otic placode of welding on the cover board, the cover board and oil The open hinge connection that box top is equipped with.