CN110605961A

CN110605961A - Automobile oil tank

Info

Publication number: CN110605961A
Application number: CN201910883800.5A
Authority: CN
Inventors: 严加文; 占学宽; 杨中于
Original assignee: Individual
Current assignee: Jiangsu Suguang Auto Parts Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2019-12-24
Anticipated expiration: 2039-09-19
Also published as: CN110605961B

Abstract

The invention belongs to the technical field of oil tanks, and particularly relates to an automobile oil tank; comprises a box body and a fixed seat; an oil guide pipe is arranged on the box body, and a separable oil pipe cover is arranged at the top of the oil guide pipe; the oil guide pipe is arranged as an inner pipe core and an outer pipe body; a heat preservation cavity is arranged between the outer pipe body and the inner pipe core, and a spiral heating pipe is arranged in the heat preservation cavity; the spiral heating pipe is communicated with a heating cavity in the box body through a heat conduction pipe; an elastic expansion layer is sleeved on the outer wall of the spiral heating pipe, and an ethanol solution is filled between the elastic expansion layer and the spiral heating pipe; the spiral heating pipe is tightly attached to the inner pipe core, and an oil pipe cover is inserted and installed on the inner pipe core; the spiral bulge generated on the inner tube core can slow down the impact force generated by the shaking of oil liquid in the box body on the inner wall of the oil guide pipe when an automobile runs on a bumpy road, so that the service life of the oil guide pipe is prolonged; meanwhile, the impact force generated by the oil liquid shaking on the oil pipe cover is reduced, and the oil pipe cover is prevented from being separated from the oil guide pipe.

Description

Automobile oil tank

Technical Field

The invention belongs to the technical field of oil tanks, and particularly relates to an automobile oil tank.

Background

With the continuous development of economy and the continuous improvement of the living standard of people, the daily travel of people also becomes more convenient. The automobile is a very common vehicle in daily life, and plays a very important role in goods transportation and daily travel of people.

The automobile oil tank is used as an oil storage device in an automobile and plays an important role in the automobile; for automobiles, an automobile oil tank is an important part, and the performance and quality of the automobile oil tank directly affect the driving experience of the automobiles, so that the assembly of an oil tank with reliable quality for the automobiles is very important in the actual assembly process

When an existing automobile runs, particularly in a cold and bumpy road area, most of heat preservation measures of an automobile oil tank are that heat generated by an automobile engine heats the oil tank for heat preservation, but an oil filling pipe of the oil tank is cracked or frozen due to cold weather, so that the normal use of the automobile oil tank is influenced; meanwhile, due to the cold weather, the phenomenon of shrinkage and hardening of the oil filling pipe is caused, so that the hardness of the oil filling pipe is increased, and the toughness or elasticity of the oil filling pipe is reduced.

Disclosure of Invention

In order to make up the defects of the prior art, the invention provides the automobile oil tank which is mainly used for solving the problem that the oil filling pipe of the prior oil tank is frozen or iced due to cold weather, so that the normal use of the automobile oil tank is influenced; meanwhile, due to the cold weather, the phenomenon of shrinkage and hardening of the oil filling pipe is caused, so that the hardness of the oil filling pipe is increased, and the toughness or elasticity of the oil filling pipe is reduced.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an automobile oil tank which comprises a tank body and a fixed seat; an oil guide pipe is arranged on the box body, and a separable oil pipe cover is arranged at the top of the oil guide pipe; the fixed seat is used for fixing the box body on the automobile; the oil guide pipe is arranged into an inner pipe core and an outer pipe body; the inner pipe core is made of elastic corrosion-resistant material; the outer pipe core is made of wear-resistant heat-preservation metal materials, and the thickness of the outer pipe core is larger than that of the inner pipe core; a heat preservation cavity is arranged between the outer pipe body and the inner pipe core, and a spiral heating pipe is arranged in the heat preservation cavity; the spiral heating pipe is communicated with a heating cavity in the box body through a heat conduction pipe; an elastic expansion layer is sleeved on the outer wall of the spiral heating pipe, and an ethanol solution is filled between the elastic expansion layer and the spiral heating pipe; the spiral heating pipe is tightly attached to the inner pipe core, and an oil pipe cover is inserted and installed on the inner pipe core; when the automobile is in work, the box body is arranged on an automobile through the fixed seat; when the tank body needs to be oiled, an oil pipe cover on an oil guide pipe is taken down, oil is added into the tank body through an oil gun, and after the oil in the tank body is added; when the automobile runs, heat generated by an engine of the automobile enters a heating cavity of the box body through an external conduit, and the heat generated by the engine can heat the box body, so that the phenomenon that an oil tank is frost-cracked when the automobile runs in a cold area is prevented; meanwhile, heat in the heating cavity enters the spiral heating pipe through the heat conduction pipe, the heat in the spiral heating pipe can play a role in heat preservation and heating of the oil guide pipe, the phenomenon that the oil guide pipe is frozen is prevented, and the normal use of the oil guide pipe is further influenced; when the heat in the spiral heating pipe continuously rises, the ethanol solution filled between the spiral heating pipe and the elastic expansion layer is heated to be evaporated, the elastic expansion layer is expanded by gas generated by the evaporation of the ethanol solution, the inner wall of the inner pipe core generates spiral protrusions by the expansion of the elastic expansion layer, and the spiral protrusions generated on the inner pipe core can slow down the impact force generated by the shaking of oil liquid in the box body on the inner wall of the oil guide pipe when an automobile runs on a bumpy road, so that the service life of the oil guide pipe is prolonged; meanwhile, the impact force generated by the oil liquid shaking on the oil pipe cover is reduced, and the oil pipe cover is prevented from being separated from the oil guide pipe; the cooperation of the spiral heating pipe and the elastic expansion layer that set up can increase oil pipe's elasticity, prevents that the car from going in cold slippery and humid area and taking place the turn-over, and oil pipe is because the temperature is crossed low excessively and is produced the too big phenomenon of shrink hardness, and then makes oil pipe take place the cracked phenomenon of striking, leads to the phenomenon that the fluid in the oil pipe takes place to reveal.

Preferably, the oil pipe cover comprises a plug-in column and a clamping cap; the plug column is inserted into the inner tube core, and the outer wall of the plug column is provided with a spiral clamping groove; the pitch of the spiral clamping groove is equal to that of the spiral heating pipe; extrusion convex balls are arranged on the upper side wall and the lower side wall of the spiral clamping groove and are in extrusion contact with the inner wall of the inner pipe core; the clamping cap is clamped and installed on the outer pipe body; when the oil pipe cover is in work, when the elastic expansion layer expands and extrudes the inner pipe core to enable the inner pipe core to generate spiral protrusions, the spiral protrusions of the inner pipe core can be extruded and clamped into spiral clamping grooves formed in the inserting columns, so that the mounting stability of the oil pipe cover on the oil guide pipe is improved, and the phenomenon that the oil pipe cover is separated when an automobile runs on a bumpy road is prevented; when the spiral protruding extrusion card that the inner tube core produced was gone into the spiral snap-in groove, the protruding ball of extrusion of setting can be outside protruding under the effect of extrusion force, and the protruding ball of extrusion can produce the extrusion force to the inner tube core, and then increases the frictional force of the inseparable laminating of post and inner tube core, and then increases the stable connection of oil pipe lid.

Preferably, the bottom end part of the insertion column is in pressing contact with the spiral ring of the spiral heating pipe; the bottom end of the insertion column is provided with a cavity extrusion plate, and the cavity extrusion plate is filled with oil absorption sponge; the cavity extrusion plate is provided with an oil guide hole; when the oil pipe cover works, when the elastic expansion layer expands to extrude the inner pipe core to enable the inner pipe core to generate spiral protrusions, the spiral protrusions generated on the inner pipe core can extrude the bottom end of the inserting column, the extrusion force generated at the bottom end of the inserting column can enable the arranged cavity extrusion plate to generate extrusion protrusions in the inner pipe core, the cavity extrusion plate after the protrusions can offset the impact force generated by oil when the box body shakes, meanwhile, oil generated by shaking in the inner pipe core can be adsorbed to the oil absorption sponge through the oil guide hole, and the phenomenon that oil generated by shaking in the box body is gathered and adsorbed at the bottom end of the oil pipe cover to cause oil dripping or oil spraying when the oil pipe cover is opened is prevented; when the oil pipe cover is opened, an operator can extrude oil adsorbed in the cavity extrusion plate through extrusion force, and the phenomenon that the oil is sprayed and dripped is prevented.

Preferably, a placing cavity is formed in the oil pipe cover, and the placing cavity is filled with a dry powder extinguishing agent; the bottom end part of the placing cavity is provided with a clamping cavity, and the clamping cavity is used for clamping and mounting the cavity extrusion plate; the during operation, when the car that traveles takes place to empty or the phenomenon of overturning, fluid in the box can flow in oil pipe lid department along oil pipe's inner tube core, the extrusion impact force of fluid can make the cavity stripper plate card go into the block intracavity, place the dry powder fire extinguishing agent that the intracavity was filled simultaneously and can play the sediment to flowing fluid, and reduce the mobility of fluid, the effectual phenomenon of revealing that prevents that fluid from taking place through the gap between oil pipe lid and the inner tube core, reduce the speed that fluid was revealed at oil pipe simultaneously.

Preferably, a sealing steel ball is arranged at the cavity opening of the placing cavity, and the bottom end face of the sealing steel ball is connected to the upper end face of the cavity extrusion plate through an elastic corrugated sheet; when the device works, when the cavity extrusion plate generates extrusion bulges under the extrusion force of the spiral bulges of the inner tube core, the extrusion bulges of the cavity extrusion plate can drive the sealing steel balls to slide downwards in the placing cavity through the elastic corrugated sheets, and the sliding sealing steel balls can play a role of sealing and blocking the cavity opening of the placing cavity, so that the phenomenon that dry powder extinguishing agent in the placing cavity leaks under the vibration state of the oil pipe cover when an automobile runs on a bumpy road is prevented, and further the use of oil liquid in the box body is influenced; if the automobile is toppled in the running process, the extrusion force of oil on the cavity extrusion plate and the elastic restoring force of the elastic corrugated sheet can push the sealing steel balls to slide in the placing cavity, the sliding sealing steel balls can open the cavity opening of the placing cavity, and the dry powder extinguishing agent in the placing cavity can be in flowing oil mixed contact.

Preferably, the insertion column is provided with an extrusion cavity, and the extrusion cavity is filled with an oil absorption sponge; the extrusion cavity is communicated with the cavity of the cavity extrusion plate through the diversion trench; the outer wall of the extrusion cavity is provided with a rough surface; when the automobile is in operation and topples over during running, flowing oil can be firstly immersed into the oil absorption sponge filled in the cavity extrusion plate, one part of redundant oil can be in mixed contact with the dry powder extinguishing agent in the placing cavity along with continuous oil absorption of the oil absorption sponge in the cavity extrusion plate, the other part of redundant oil can be immersed into the oil absorption sponge filled in the extrusion cavity through the diversion trench, the oil can be continuously absorbed by the oil absorption sponge in the oil pipe cover and the dry powder extinguishing agent can precipitate and adsorb the oil, so that the flowing speed of the oil in the oil guide pipe is reduced, meanwhile, the oil absorption sponge can expand by the oil liquid absorbed by the oil absorption sponge filled in the oil pipe cover, the outer wall of the extrusion cavity can expand by the expanded oil absorption sponge, and then increase the compressive contact force of grafting post and the inside of inner tube core, and then increase the oil pipe lid when the car takes place to incline, the stable installation of oil pipe lid.

The invention has the following beneficial effects:

1. according to the invention, the ethanol solution filled between the spiral heating pipe and the elastic expansion layer is heated to be evaporated, the gas generated by the evaporation of the ethanol solution can enable the elastic expansion layer to expand, the expansion of the elastic expansion layer can enable the inner wall of the inner pipe core to generate spiral protrusions, and the spiral protrusions generated on the inner pipe core can slow down the impact force generated by the oil liquid in the box body to the inner wall of the oil guide pipe when an automobile runs on a bumpy road, so that the service life of the oil guide pipe is prolonged; meanwhile, the impact force generated by the oil liquid shaking on the oil pipe cover is reduced, and the oil pipe cover is prevented from being separated from the oil guide pipe.

2. According to the invention, through the matching of the spiral heating pipe and the elastic expansion layer, the elasticity of the oil guide pipe can be increased, and the phenomenon that when the automobile turns over in a cold and slippery area, the oil guide pipe has overlarge shrinkage hardness due to too low temperature, so that the oil guide pipe has an impact fracture phenomenon, and the oil in the oil guide pipe leaks is prevented.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an assembly view of the inner tube core and outer tube body of the present invention;

FIG. 3 is a side sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 3;

in the figure: the oil pipe heat preservation device comprises a box body 1, a fixed seat 2, an oil guide pipe 3, an inner pipe core 31, an outer pipe body 32, a heat preservation cavity 33, an oil pipe cover 4, a plug column 41, a spiral clamping groove 411, a clamping cap 42, an extrusion convex ball 43, a placing cavity 44, a clamping cavity 45, an extrusion cavity 46, a spiral heating pipe 5, an elastic expansion layer 6, a cavity extrusion plate 7, an oil absorption sponge 8, a sealing steel ball 9 and an elastic corrugated sheet 10.

Detailed Description

An automobile fuel tank according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.

As shown in fig. 1-4, the fuel tank of the present invention comprises a tank body 1 and a fixing base 2; an oil guide pipe 3 is arranged on the box body 1, and a separable oil pipe cover 4 is arranged at the top of the oil guide pipe 3; the fixed seat 2 is used for fixing the box body 1 on an automobile; the oil guide pipe 3 is arranged into an inner pipe core 31 and an outer pipe body 32; the inner tube core 31 is provided as an elastic corrosion resistant material; the outer pipe core is made of wear-resistant heat-preservation metal materials, and the thickness of the outer pipe core is larger than that of the inner pipe core 31; a heat preservation cavity 33 is arranged between the outer pipe body 32 and the inner pipe core 31, and a spiral heating pipe 5 is arranged in the heat preservation cavity 33; the spiral heating pipe 5 is communicated with a heating cavity in the box body 1 through a heat conduction pipe; the outer wall of the spiral heating pipe 5 is sleeved with an elastic expansion layer 6, and an ethanol solution is filled between the elastic expansion layer 6 and the spiral heating pipe 5; the spiral heating pipe 5 is tightly attached to the inner pipe core 31, and the oil pipe cover 4 is inserted and installed on the inner pipe core 31; when the automobile is in work, the box body 1 is arranged on an automobile through the fixed seat 2; when the tank body 1 needs to be oiled, the oil pipe cover 4 on the oil guide pipe 3 is taken down, the oil is added into the tank body 1 through the oil gun, and after the oil in the tank body 1 is added; when the automobile runs, heat generated by an engine of the automobile enters the heating cavity of the box body 1 through the external connecting guide pipe, the heat generated by the engine can heat the box body 1, and the phenomenon that an oil tank is frost-cracked when the automobile runs in a cold area is prevented; meanwhile, the heat in the heating cavity enters the spiral heating pipe 5 through the heat conduction pipe, and the heat in the spiral heating pipe 5 can play a role in heat preservation and heating of the oil conduit 3, so that the phenomenon that the oil conduit 3 is frozen is prevented, and the normal use of the oil conduit 3 is further influenced; when the heat in the spiral heating pipe 5 rises continuously, the ethanol solution filled between the spiral heating pipe 5 and the elastic expansion layer 6 is heated to be evaporated, the elastic expansion layer 6 is expanded by gas generated by the evaporation of the ethanol solution, the inner wall of the inner pipe core 31 generates spiral protrusions by the expansion of the elastic expansion layer 6, and the spiral protrusions generated on the inner pipe core 31 can relieve the impact force generated by the shaking of oil in the box body 1 on the inner wall of the oil guide pipe 3 when an automobile runs on a bumpy road, so that the service life of the oil guide pipe 3 is prolonged; meanwhile, the impact force generated by the oil liquid shaking on the oil pipe cover 4 is reduced, so that the oil pipe cover 4 is prevented from being separated from the oil guide pipe 3; the cooperation of the spiral heating pipe 5 and the elastic expansion layer 6 that set up can increase the elasticity of oil pipe 3, prevents that when the car from going in cold slippery and wet area and taking place the upset, oil pipe 3 is too big because the temperature is low excessively to produce the too big phenomenon of shrink hardness, and then makes oil pipe 3 take place the phenomenon of striking fracture, leads to oil in the oil pipe 3 to take place the phenomenon of revealing.

As shown in fig. 2 to 4, the oil pipe cover 4 includes a plug column 41 and a snap cap 42; the inserting column 41 is inserted into the inner pipe core 31, and the outer wall of the inserting column 41 is provided with a spiral clamping groove 411; the pitch of the spiral clamping groove 411 is equal to that of the spiral heating pipe 5; the upper and lower side walls of the spiral engaging groove 411 are provided with extrusion convex balls 43, and the extrusion convex balls 43 are in extrusion contact with the inner wall of the inner core 31; the clamping cap 42 is clamped and installed on the outer tube body 32; when the automobile oil guide pipe cap works, when the elastic expansion layer 6 expands and extrudes the inner pipe core 31 to enable the inner pipe core 31 to generate spiral protrusions, the spiral protrusions of the inner pipe core 31 can be extruded and clamped into the spiral clamping grooves 411 formed in the inserting columns 41, so that the mounting stability of the oil pipe cap 4 on the oil guide pipe 3 is improved, and the phenomenon that the oil pipe cap 4 is separated when an automobile runs on a bumpy road is prevented; when the spiral protruding extrusion that interior tube core 31 produced is gone into spiral snap-in groove 411 in, the protruding ball 43 of extrusion that sets up can be outside protruding under the effect of extrusion force, and the protruding ball 43 of extrusion can produce the extrusion force to interior tube core 31, and then increases the frictional force of the inseparable laminating of peg graft post 41 and interior tube core 31, and then increases the stable connection of oil pipe lid 4.

As shown in fig. 3 and 4, the bottom end of the insertion column 41 is in pressing contact with the coil of the spiral heating pipe 5; the bottom end of the plug column 41 is provided with a cavity extrusion plate 7, and the cavity extrusion plate 7 is filled with an oil absorption sponge 8; the cavity extrusion plate 7 is provided with an oil guide hole; when the oil pipe cover works, when the elastic expansion layer 6 expands to extrude the inner pipe core 31 to enable the inner pipe core 31 to generate spiral protrusions, the spiral protrusions generated on the inner pipe core 31 can extrude the bottom end of the inserting column 41, the extrusion force generated at the bottom end of the inserting column 41 can enable the arranged cavity extrusion plate 7 to generate extrusion protrusions in the inner pipe core 31, the impact force generated by oil liquid when the box body 1 shakes can be counteracted by the protruded cavity extrusion plate 7, meanwhile, the oil liquid generated by shaking in the inner pipe core 31 can be adsorbed to the oil absorption sponge 8 through the oil guide hole, and the oil liquid generated by shaking in the box body 1 is prevented from generating aggregation adsorption at the bottom end of the oil pipe cover 4, so that the phenomenon of oil dripping or oil liquid spraying can occur when the oil pipe cover 4 is opened; when the oil pipe cover 4 is opened, an operator can extrude oil adsorbed in the cavity extrusion plate 7 through extrusion force, and the phenomenon that the oil is sprayed and dripped is prevented.

As shown in fig. 3 and 4, a placing cavity 44 is formed inside the oil pipe cover 4, and the placing cavity 44 is filled with a dry powder extinguishing agent; the bottom end part of the placing cavity 44 is provided with a clamping cavity 45, and the clamping cavity 45 is used for clamping and mounting the cavity extrusion plate 7; the during operation, when the car that traveles takes place to empty or the phenomenon of overturning, fluid in the box 1 can flow in oil pipe lid 4 department along the inner tube core 31 of leading oil pipe 3, the extrusion impact force of fluid can make cavity stripper plate 7 card go into block chamber 45 in, the dry powder fire extinguishing agent of placing the intussuseption in chamber 44 simultaneously can play the sediment to flowing fluid, and reduce the mobility of fluid, the effectual phenomenon of revealing that prevents fluid from taking place through the gap between oil pipe lid 4 and the inner tube core 31, reduce the speed that fluid was revealed at leading oil pipe 3 simultaneously.

As shown in fig. 3 and 4, a sealing steel ball 9 is arranged at the mouth of the placing cavity 44, and the bottom end surface of the sealing steel ball 9 is connected to the upper end surface of the cavity pressing plate 7 through an elastic corrugated sheet 10; when the device works, when the cavity extrusion plate 7 generates extrusion bulges under the extrusion force of the spiral bulges of the inner tube core 31, the extrusion bulges of the cavity extrusion plate 7 can drive the sealing steel balls 9 to slide downwards in the placing cavity 44 through the elastic corrugated sheets 10, and the sliding sealing steel balls 9 can play a role in sealing and blocking the cavity opening of the placing cavity 44, so that the phenomenon that dry powder extinguishing agent in the placing cavity 44 leaks under the condition that the oil pipe cover 4 generates vibration when an automobile is running on a bumpy road is prevented, and further the use of oil in the box body 1 is influenced; if the automobile topples over during running, the extrusion force of the oil on the cavity extrusion plate 7 and the elastic restoring force of the elastic corrugated sheet 10 can push the sealing steel ball 9 to slide in the placing cavity 44, the sliding sealing steel ball 9 can open the cavity opening of the placing cavity 44, and the dry powder extinguishing agent in the placing cavity 44 can be in flowing oil mixed contact.

As shown in fig. 3 and 4, the inserting column 41 is provided with an extrusion cavity 46, and the extrusion cavity 46 is filled with the oil absorption sponge 8; the extrusion cavity 46 is communicated with the cavity of the cavity extrusion plate 7 through a diversion trench; the outer wall of the extrusion cavity 46 is provided with a rough surface; when the automobile runs and topples over, flowing oil can be firstly immersed into the oil absorption sponge 8 filled in the cavity extrusion plate 7, along with the continuous absorption of the oil absorption sponge 8 in the cavity extrusion plate 7, one part of redundant oil can be in mixed contact with the dry powder extinguishing agent in the placing cavity 44, the other part of redundant oil can be immersed into the oil absorption sponge 8 filled in the extrusion cavity 46 through the diversion trench, along with the continuous absorption of the oil absorption sponge 8 in the oil pipe cover 4 to the oil and the deposition and adsorption of the dry powder extinguishing agent to the oil, the flowing speed of the oil in the oil guide pipe 3 is reduced, meanwhile, the oil absorption sponge 8 can expand by the oil absorption of the oil absorption sponge 8 filled in the oil pipe cover 4, the outer wall of the extrusion cavity 46 can expand by the expanded oil absorption sponge 8, and further the extrusion contact force between the plug column 41 and the inner pipe core 31 is increased, and further, the stable installation of the oil pipe cover 4 when the automobile inclines is increased.

The specific working process is as follows:

when the automobile is in work, the box body 1 is arranged on an automobile through the fixed seat 2; when the tank body 1 needs to be oiled, the oil pipe cover 4 on the oil guide pipe 3 is taken down, the oil is added into the tank body 1 through the oil gun, and after the oil in the tank body 1 is added; when the automobile runs, heat generated by an engine of the automobile enters the heating cavity of the box body 1 through the external connecting guide pipe, the heat generated by the engine can heat the box body 1, and the phenomenon that an oil tank is frost-cracked when the automobile runs in a cold area is prevented; meanwhile, heat in the heating cavity enters the spiral heating pipe 5 through the heat conduction pipe, the heat in the spiral heating pipe 5 can play a role in heat preservation and heating on the oil guide pipe 3, the phenomenon that the oil guide pipe 3 is frozen is prevented, and the normal use of the oil guide pipe 3 is further influenced.

In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. An automobile oil tank comprises a tank body (1) and a fixed seat (2); an oil guide pipe (3) is arranged on the box body (1), and a separable oil pipe cover (4) is arranged at the top of the oil guide pipe (3); the fixed seat (2) is used for fixing the box body (1) on an automobile; the method is characterized in that: the oil guide pipe (3) is arranged into an inner pipe core (31) and an outer pipe body (32); the inner tube core (31) is made of elastic corrosion-resistant material; the outer pipe core is made of wear-resistant heat-preservation metal materials, and the thickness of the outer pipe core is larger than that of the inner pipe core (31); a heat preservation cavity (33) is arranged between the outer pipe body (32) and the inner pipe core (31), and a spiral heating pipe (5) is arranged in the heat preservation cavity (33); the spiral heating pipe (5) is communicated with a heating cavity in the box body (1) through a heat conduction pipe; an elastic expansion layer (6) is sleeved on the outer wall of the spiral heating pipe (5), and an ethanol solution is filled between the elastic expansion layer (6) and the spiral heating pipe (5); the spiral heating pipe (5) is tightly attached to the inner pipe core (31), and the oil pipe cover (4) is installed on the inner pipe core (31) in an inserted mode.

2. An automotive fuel tank as claimed in claim 1, characterized in that: the oil pipe cover (4) comprises an insertion column (41) and a clamping cap (42); the plug column (41) is inserted into the inner tube core (31), and the outer wall of the plug column (41) is provided with a spiral clamping groove (411); the pitch of the spiral clamping groove (411) is equal to that of the spiral heating pipe (5); extrusion convex balls (43) are arranged on the upper side wall and the lower side wall of the spiral clamping groove (411), and the extrusion convex balls (43) are in extrusion contact with the inner wall of the inner pipe core (31); the clamping cap (42) is clamped and installed on the outer tube body (32).

3. A fuel tank for an automobile according to claim 2, wherein: the bottom end part of the insertion column (41) is in extrusion contact with the spiral ring of the spiral heating pipe (5); the bottom end of the plug column (41) is provided with a cavity extrusion plate (7), and the cavity extrusion plate (7) is filled with an oil absorption sponge (8); the cavity extrusion plate (7) is provided with an oil guide hole.

4. A fuel tank for an automobile according to claim 3, wherein: a placing cavity (44) is formed in the oil pipe cover (4), and dry powder extinguishing agent is filled in the placing cavity (44); the bottom end of the placing cavity (44) is provided with a clamping cavity (45), and the clamping cavity (45) is used for clamping and mounting the cavity extrusion plate (7).

5. An automotive fuel tank as claimed in claim 4, characterized in that: the mouth of the placing cavity (44) is provided with a sealing steel ball (9), and the bottom end face of the sealing steel ball (9) is connected to the upper end face of the cavity extrusion plate (7) through an elastic corrugated sheet (10).

6. An automotive fuel tank as claimed in claim 1, characterized in that: the inserting column (41) is provided with an extrusion cavity (46), and the extrusion cavity (46) is filled with an oil absorption sponge (8); the extrusion cavity (46) is communicated with the cavity of the cavity extrusion plate (7) through a diversion trench; the outer wall of the extrusion cavity (46) is arranged in a rough surface mode.