CN113650793B - Visual gravity oil filling port and scale marking method thereof - Google Patents
Visual gravity oil filling port and scale marking method thereof Download PDFInfo
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- CN113650793B CN113650793B CN202111225709.8A CN202111225709A CN113650793B CN 113650793 B CN113650793 B CN 113650793B CN 202111225709 A CN202111225709 A CN 202111225709A CN 113650793 B CN113650793 B CN 113650793B
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- 230000005484 gravity Effects 0.000 title claims abstract description 37
- 230000000007 visual effect Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000007667 floating Methods 0.000 claims abstract description 31
- 239000002828 fuel tank Substances 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 239000003921 oil Substances 0.000 claims description 126
- 239000000446 fuel Substances 0.000 claims description 66
- 239000000295 fuel oil Substances 0.000 claims description 18
- 239000000945 filler Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000010763 heavy fuel oil Substances 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims 7
- 241001330002 Bambuseae Species 0.000 claims 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 7
- 239000011425 bamboo Substances 0.000 claims 7
- 230000008602 contraction Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/02—Tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U50/00—Propulsion; Power supply
- B64U50/10—Propulsion
- B64U50/11—Propulsion using internal combustion piston engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention relates to the technical field of fuel tanks of airplanes, and discloses a visual gravity oil filling port and a scale marking method thereof, and firstly discloses a visual gravity oil filling port which comprises an oil inlet device and a detection device, wherein the detection device comprises a display assembly, a pulley assembly, a rigid rope III and a floating ball; secondly, a scale marking method is provided and applied to the visual gravity oil filling port, so that the visual gravity oil filling port provided by the invention can be applied to oil tanks of different models. The invention has the advantages of no need of additional system loss and visual oil quantity display.
Description
Technical Field
The invention belongs to the technical field of fuel quantity detection of aircraft fuel tanks, and particularly relates to a visual gravity fuel filling port and a scale marking method thereof, which are used for measuring the fuel surplus in a fuel tank and visually displaying the fuel surplus at the fuel filling port.
Background
On the unmanned aerial vehicle that uses fuel as fuel, the state of the close monitoring oil mass of needs, like the remaining oil mass in the fuel tank, or through the remaining measurement of the conversion of the use amount of monitoring fuel to guarantee flight safety. The prior art has two methods for monitoring the fuel quantity of a fuel tank.
The first one adopts capacitive fuel quantity measuring system, sets up capacitive fuel quantity sensor at the oil tank, feels the oil level height in the oil tank and measures the aircraft fuel capacity, can transmit the fuel quantity signal in real time and show the remaining fuel quantity in the oil tank, and this method is often used in manned military aircraft, passenger plane. The aircraft has the oil tank with large size and regular shape, and the monitoring of the residual oil quantity of the oil tank in flight needs real-time performance and accuracy. However, the finished fuel oil measurement technology is expensive, extra system loss (such as an electric interface and a signal interface) needs to be added, and the fuel oil measurement technology is not suitable for the low-cost unmanned aerial vehicle.
And the second type adopts a turbine type oil mass measuring system, a turbine type fuel oil flow sensor is arranged on an oil supply main pipeline to measure the oil mass consumed by the engine, and the consumed oil mass is subtracted from the total oil mass of the airplane to indirectly measure the residual oil mass in the oil tank. However, due to the accumulation of errors caused by the following reasons, the difference between the real fuel in the fuel tank and the residual fuel in the fuel tank displayed on the airplane is large, and the flight safety of the airplane is affected:
1. the fuel flow sensor obtains the fuel flow through an electromagnetic induction signal generated by the fuel, and is easily influenced by a complex electromagnetic environment on a machine, and the problems of inaccurate measurement and the like easily occur;
2. refueling errors of a refueling truck;
3. the influence of oil leakage, oil seepage and the like occurs in the front pipeline of the oil tank or the oil supply main pipe.
In consideration of easy cost and size of an oil tank, the unmanned aerial vehicle generally adopts the second method, long-time error accumulation causes inconsistency between real fuel in the oil tank and residual oil of the oil tank displayed by the vehicle, and the potential safety hazard of flight is easily brought, so that fuel calibration is needed to be carried out on the unmanned aerial vehicle after the unmanned aerial vehicle flies for a certain number of times. The method specifically comprises the following steps: and (4) emptying all fuel oil on the machine, and marking the oil quantity displayed on the machine as zero. This calibration is not economical and takes time and labor.
The invention aims to provide a visual gravity oil filling port aiming at the defects in the prior art, and the visual gravity oil filling port has the advantages of simple structure, convenience in use, low cost, reliability and stability in mechanical verification, small error, no need of bringing extra system loss and very remarkable advantages; and meanwhile, the oil tank can adapt to various types of oil tanks with different depths.
Disclosure of Invention
Aiming at the defects that extra system loss needs to be increased, display is not consistent with reality due to error accumulation, and fuel needs to be emptied after each flight in order to ensure accurate fuel allowance display in the prior art, the invention provides the visual gravity oil filling port.
First, the present invention provides a visual gravity filler neck.
The visual gravity oil filling port is fixedly arranged on the oil tank and comprises an oil inlet device and a detection device;
the oil inlet device is cylindrical, the outer wall of an upper port of the oil inlet device is fixedly arranged on the oil tank, and a lower port of the oil inlet device extends into the oil tank;
the detection device comprises a display assembly, a pulley assembly and a floating ball;
the display assembly comprises an annular display ring, the outer wall of the display ring is fixedly mounted on the inner wall of the upper end opening of the oil inlet device, a spring mounting groove is formed in the display ring along the circumferential direction of the display ring, a return spring is arranged in the spring mounting groove, a fixing hole penetrates through the side wall of the spring mounting groove, the fixed end of the return spring is mounted in the fixing hole through a fixing bolt, an indicating needle is arranged at the free end of the return spring, the free end of the return spring is fixedly connected with the head end of a rigid rope I, and the tail end of the rigid rope I is connected with the pulley assembly; a gap for the pointer to extend out and to slide along the circumferential direction of the display ring is formed in the side wall of the spring mounting groove, and scale marks are arranged on the edge of the gap;
the pulley assembly comprises an annular pulley ring and a movable pulley, the inner ring of the pulley ring is fixedly arranged on the outer wall of the oil inlet device, an annular or spiral pulley groove is formed in the pulley ring, the movable pulley is arranged in the pulley groove, and the tail end of the rigid rope I is fixedly connected with a rotating shaft of the movable pulley; a rigid rope II is arranged in the pulley groove, the head end of the rigid rope II is fixedly connected to the inner wall of the pulley groove, and the tail end of the rigid rope II extends out of the pulley groove after being wound in the winding groove of the movable pulley;
the floating ball is located inside the oil tank, the tail end of a rigid rope III is fixedly connected to the floating ball, and the head end of the rigid rope III is fixedly connected with the tail end of a rigid rope II.
In order to avoid that the display ring cannot display the whole process from full oil to empty oil in the oil tank due to the fact that the expansion amount of the return spring is too short, the number of the pulley rings in the pulley assembly is two or more; and the tail ends of the rigid ropes II in the pulley rings close to the display assembly in two adjacent pulley rings are connected with the rotating shaft of the movable pulley in the other pulley ring.
In order to better realize the invention, a limiting block I and a limiting block II for limiting the sliding range of the indicating needle in the gap are further arranged on the display ring, and the limiting block I and the limiting block II are respectively positioned at two ends of the scale mark line.
In order to facilitate refueling and filter fuel entering the fuel tank, the fuel inlet device further comprises an upper funnel, a lower funnel, a snap ring, a filter cylinder and a bottom cone, a contraction port of the upper funnel and a contraction port of the lower funnel are fixedly connected through the snap ring, the cylindrical upper port of the filter cylinder is fixedly connected with the outer side wall of the open end of the upper funnel, the lower funnel cover is arranged on the inner side of the filter cylinder, the lower port of the filter cylinder is fixedly connected with the outer side edge of the end with the larger diameter of the bottom cone, the convex cone top of the bottom cone faces the open end of the lower funnel, and the end where the bottom cone is located is the lower port of the fuel inlet device.
In order to facilitate the installation of the oil inlet device on the oil tank, positions for installing the display assembly and the pulley assembly are reserved, furthermore, a straight cylinder section is coaxially arranged at the open end of the upper funnel in an extending mode along the central axis of the open end, the straight cylinder section serves as the upper port of the oil inlet device, and a through hole for the rigid rope I to pass through is formed in the side wall of the straight cylinder section.
In order to better realize the invention, waist-shaped through holes are respectively arranged on the conical walls of the upper hopper and the lower hopper, and a hollow sieve plate is arranged at the open end of the lower hopper.
In order to better realize the invention, further, the display ring is in interference fit with the inner wall of the upper port of the oil inlet device, the pulley ring is in interference fit with the outer wall of the upper port of the oil inlet device, and the pulley ring is positioned inside the oil tank.
In order to better implement the invention, further, the outer diameter of the filter cartridge is equal to the inner diameter of the pulley ring.
In order to better realize the invention, further, the mass of the floating ball is M, and the volume of the floating ball is V; the density of fuel oil in the fuel tank is rho; g represents the gravity acceleration, and the gravity value of the floating ball is equal to the buoyancy value of the fuel level when the floating ball 1/2 is immersed in the fuel tank, namely Mg =1/2V rho.
The invention further provides a scale marking method applied to the visual gravity oil filling port, the oil filling port is installed on the oil tank, fuel oil is filled into the oil tank to a rated capacity, the same amount of fuel oil is taken out of the oil tank for a plurality of times, and the fuel oil allowance in the oil tank is marked on the scale marking line corresponding to the position of the indicator needle after the fuel oil is taken out every time.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) according to the visual gravity oil filling port provided by the invention, the display component visually displays the oil filling port, so that the direct observation is convenient during oil filling; meanwhile, the movable pulley block is adopted to save the moving distance of the reset spring in the moving process of the floating ball, the specific relation between the moving amount of the floating ball and the moving amount of the reset spring can be adjusted by increasing or decreasing the number of pulley rings in the pulley block, the oil tanks at different depths can be quickly matched and adapted to measure, and the oil tank measuring device has wide applicability and simplicity and convenience in operation;
(2) extra system loss is not required to be increased, errors cannot be accumulated to cause overlarge deviation in the process of continuously measuring the fuel allowance of the fuel tank, and the real allowance of the fuel in the fuel tank is displayed in real time without emptying the fuel after each flight to ensure that the displayed allowance is the same as the real allowance;
(3) the mechanical structure is adopted for measurement through a force balance method, and the characteristic that the density of the fuel oil is hardly changed under the condition of non-extreme pressure change is utilized, so that the measured result is not influenced by the flying height of the airplane to generate deviation, and error correction is not needed;
(4) the scale marking method applied to the visual gravity oil filling port provided by the invention enables the visual gravity oil filling port provided by the invention to be applied to oil tanks of different models, and has good adaptability particularly when being applied to special-shaped oil tanks.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale. All of the inventive innovations herein should be considered in the disclosure and the scope of the present invention.
FIG. 1 is a schematic perspective view of a visual gravity fuel filler provided by the present invention;
FIG. 2 is a schematic cross-sectional view of the invention;
FIG. 3 is a schematic structural diagram of a display module according to the present invention;
fig. 4 is a schematic view of the construction of the sheave assembly of the present invention.
Wherein: 1. an oil inlet device; 11. an upper funnel; 12. a lower hopper; 13. a snap ring; 14. a filter cartridge; 15. a bottom cone; 2. a display component; 21. a display ring; 211. a spring mounting groove; 212. a fixing hole; 213. scale marking; 22. a return spring; 221. fixing the bolt; 222. an indicator needle; 223. a rigid rope I; 3. a sheave assembly; 31. a pulley ring; 311. a pulley groove; 32. a movable pulley; 33. a rigid rope II; 4. a floating ball; 5. a rigid cord III; 6. and an oil tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
a visual gravity oil filling port of the present embodiment, as shown in fig. 1 to 4, is fixedly installed on an oil tank 6, and includes an oil feeding device 1 and a detection device;
the oil inlet device 1 is cylindrical, the outer wall of an upper port of the oil inlet device 1 is fixedly arranged on the oil tank 6, and a lower port of the oil inlet device 1 extends into the oil tank 6;
the detection device comprises a display component 2, a pulley component 3 and a floating ball 4;
the display assembly 2 comprises an annular display ring 21, the outer wall of the display ring 21 is fixedly mounted on the inner wall of the upper end port of the oil inlet device 1, a spring mounting groove 211 is formed in the display ring 21 along the circumferential direction, a return spring 22 is arranged in the spring mounting groove 211, a fixing hole 212 is formed in the side wall of the spring mounting groove 211 in a penetrating mode, the fixing end of the return spring 22 is mounted in the fixing hole 212 through a fixing bolt 221, an indicating needle 222 is arranged at the free end of the return spring 22, the free end of the return spring 22 is fixedly connected with the head end of a rigid rope I223, and the tail end of the rigid rope I223 is connected with the pulley assembly 3; a gap for the pointer 222 to extend out and for the pointer 222 to slide along the circumferential direction of the display ring 21 is formed in the side wall of the spring mounting groove 211, and a scale mark 213 is arranged on the edge of the gap;
the pulley component 3 comprises an annular pulley ring 31 and a movable pulley 32, the inner ring of the pulley ring 31 is fixedly mounted on the outer wall of the oil inlet device 1, an annular or spiral pulley groove 311 is formed in the pulley ring 31, the movable pulley 32 is arranged in the pulley groove 311, and the tail end of the rigid rope I223 is fixedly connected with a rotating shaft of the movable pulley 32; a rigid rope II 33 is arranged in the pulley groove 311, the head end of the rigid rope II 33 is fixedly connected to the inner wall of the pulley groove 311, and the tail end of the rigid rope II 33 extends out of the pulley groove 311 after being wound in the winding groove of the movable pulley 32;
the floating ball 4 is located inside the oil tank 6, the tail end of a rigid rope III 5 is fixedly connected to the floating ball 4, and the head end of the rigid rope III 5 is fixedly connected with the tail end of a rigid rope II 33.
The rigid cord II 33 and the rigid cord III 5 in the embodiment may be one continuous cord.
In the embodiment, the floating ball 4 is adopted to drag the return spring 22 and the pointer in the display component 2, and the fuel allowance in the fuel tank 6 is visually displayed in real time at the upper port of the fuel inlet device 1; by utilizing the force balance principle and the characteristic that the density of the fuel oil is hardly changed under the condition of non-extreme pressure change, the measured result is not influenced by the flying height of the airplane to generate deviation, and error correction is not needed; the movable pulley 32 group realizes the function of saving the moving distance of the return spring 22 in the moving process of the floating ball 4, can adjust the specific relation between the moving amounts of the floating ball 4 and the return spring 22 by increasing or decreasing the number of the pulley rings 31 in the pulley assembly 3, can be quickly matched and adapted to measure the oil tanks 6 at different depths, and has wide applicability and simplicity in operation.
Example 2:
in this embodiment, a further optimization is performed on the basis of embodiment 1, as shown in fig. 3, in order to avoid that the display ring 21 cannot display the whole process from full oil to empty oil in the oil tank 6 due to too short expansion and contraction of the return spring 22, in the pulley assembly 3, the number of the pulley rings 31 is two or more; the ends of the rigid ropes II 33 in the pulley rings 31 close to the display component 2 in two adjacent pulley rings 31 are connected with the rotating shaft of the movable pulley 32 in the other pulley ring 31.
And a limiting block I and a limiting block II for limiting the sliding range of the indicating needle 222 in the gap are arranged on the display ring 21, and the limiting block I and the limiting block II are respectively positioned at two ends of the scale marking line 213.
The rest of example 2 is the same as example 1, and thus, description thereof is omitted.
Example 3:
in this embodiment, a further optimization is performed on the basis of embodiment 2, as shown in fig. 1 and fig. 2, in order to facilitate refueling and filter fuel entering the fuel tank 6, the fuel inlet device 1 includes an upper funnel 11, a lower funnel 12, a snap ring 13, a filter cartridge 14 and a bottom cone 15, a contraction port of the upper funnel 11 and a contraction port of the lower funnel 12 are fixedly connected by the snap ring 13, an upper port of the cylindrical filter cartridge 14 is fixedly connected with an outer side wall of an open end of the upper funnel 11, the lower funnel 12 is covered inside the filter cartridge 14, a lower port of the filter cartridge 14 is fixedly connected with an outer side edge of an end of the bottom cone 15 with a larger diameter, a protruding cone top of the bottom cone 15 faces the open end of the lower funnel 12, and an end of the bottom cone 15 is a lower port of the fuel inlet device 1.
The filter cartridge 14 filters fuel, and prevents impurities from falling from an upper port of the oil inlet device 1 and mixing into the oil tank 6; compare flat type fuel and get into the time easy obstructed and lead to the fuel recoil to lead to spilling over the condition of oil feed device 1, the vertex of a cone orientation of end cone 15 the open end of lower part funnel 12, the fuel process lower part funnel 12 falls on end cone 15 other vertex of a cone reposition of redundant personnel to around, weakens the impact of fuel and end cone 15, and the fuel more can pass through the filter screen fast, avoids producing air shutoff phenomenon under atmospheric pressure effect in oil feed device 1, under this kind of condition, compares flat type bottom surface and can adopt more fine and close filter screen to filtering the slight impurity that falls into in the fuel.
In order to facilitate the installation of the oil inlet device 1 on the oil tank 6 and reserve positions for installing the display component 2 and the pulley component 3, the open end of the upper funnel 11 is coaxially extended along the central axis of the open end to form a straight cylinder section, the straight cylinder section is used as an upper port of the oil inlet device 1, and a through hole for the rigid rope I223 to pass through is formed in the side wall of the straight cylinder section.
The upper portion funnel 11 with all be equipped with waist type through-hole on the conical wall of lower part funnel 12, the open end of lower part funnel 12 is equipped with the sieve of fretwork.
The waist-shaped through hole can facilitate fuel oil to enter the oil tank 6 when the fuel oil is filled, and meanwhile, larger parts or sundries can be prevented from carelessly falling into the oil tank 6; the sieve plate arranged at the open end of the lower funnel 12 also plays a role in preventing sundries from falling into the oil tank 6; meanwhile, the open end of the upper hopper 11 can facilitate devices such as an oil gun and the like to extend into the oil inlet device 1 for oiling; when in refueling, fuel rapidly gushes in and is blocked by the sieve plate, and the fuel easily rushes out of the oil inlet device 1, so that the open end of the lower funnel 12 provides a certain accommodating space when the fuel backflows, the effect of weakening the backflushing of the fuel is achieved, and the environmental pollution or potential safety hazard caused by the overflow of the fuel is avoided.
In this implementation, show ring 21, pulley ring 31 with the cooperation mode of oil feed device 1 all is interference fit, and chooses for use the fit tolerance to be H8 u7, adopts press or temperature difference method assembly, and it can firm connection not to add the fastener, can transmit big moment of torsion even, consequently, is difficult to drop.
The outside diameter of the filter cartridge 14 is equal to the inside diameter of the pulley ring 31.
The problem that the external diameter of the filter cylinder 14 is too large to block the up-and-down movement of the rigid rope III 5 and the floating ball 4 is avoided, and the detection precision of the detection device is prevented from being influenced due to the friction force generated between the outer wall of the filter cylinder 14 and the rigid rope III 5.
Example 4:
the embodiment is further optimized on the basis of the embodiment 2 or 3, and the mass of the floating ball 4 is M, and the volume of the floating ball is V; the density of the fuel in the fuel tank 6 is rho; g represents the acceleration of gravity, and the gravity value borne by the floating ball 4 is equal to the buoyancy value borne by the 1/2 volume of the floating ball 4 when the fuel level in the fuel tank 6 is submerged, namely Mg =1/2V rho.
When the fuel in the fuel tank 6 reaches the rated capacity, the floating ball 4 just has half volume to immerse into the horizontal liquid level of the fuel, the friction force to be overcome when the movable parts such as the movable pulley 32, the rigid rope I223, the rigid rope II 33 and the rigid rope III 5 and the fixed parts move relatively is f, the tension force provided by the return spring 22 is T, and the force relationship in the whole system is Mg-1/2V rho + f = T; when the fuel allowance is reduced, the floating ball 4 is reduced by buoyancy, the variation of the friction force f with the absolute value far smaller than the absolute value of the gravity of the floating ball is almost ignored, in order to keep the balance of the force in the force system, the return spring 22 is continuously stretched to provide larger tension T, and the indicator pin 222 at the free end of the return spring 22 slides along the scale mark line 213 and indicates the corresponding fuel allowance scale when being continuously stretched.
The rest of this embodiment is the same as embodiment 2 or 3, and therefore, the description thereof is omitted.
Example 5:
a scale marking method is applied to any one of the visual gravity oil filling ports in the above embodiments, the oil filling port is installed on the oil tank 6, fuel oil is filled into the oil tank 6 to a rated capacity, the same amount of fuel oil is taken out of the oil tank 6 for a plurality of times, and after the fuel oil is taken out each time, the remaining fuel oil in the oil tank 6 is marked on the scale marking line 213 corresponding to the position of the indicator pin 222.
The scale marking method provided by the embodiment enables the visual gravity oil filling port provided by the invention to be applied to oil tanks 6 of different models, and has good adaptability particularly when being applied to special-shaped oil tanks 6.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. A visual gravity oil filling port is fixedly arranged on an oil tank (6), and is characterized in that; comprises an oil inlet device (1) and a detection device;
the oil inlet device (1) is cylindrical, the outer wall of the upper port of the oil inlet device (1) is fixedly arranged on the oil tank (6), and the lower port of the oil inlet device (1) extends into the oil tank (6);
the detection device comprises a display component (2), a pulley component (3) and a floating ball (4);
the display assembly (2) comprises an annular display ring (21), the outer wall of the display ring (21) is fixedly installed on the inner wall of an upper port of the oil inlet device (1), a spring installation groove (211) is formed in the display ring (21) along the circumferential direction, a reset spring (22) is arranged in the spring installation groove (211), a fixing hole (212) penetrates through the side wall of the spring installation groove (211), the fixed end of the reset spring (22) is installed in the fixing hole (212) through a fixing bolt (221), an indicating needle (222) is arranged at the free end of the reset spring (22), the free end of a rigid rope I (223) is fixedly connected to the free end of the reset spring (22), and the tail end of the rigid rope I (223) is connected with the pulley assembly (3); a gap for the pointer (222) to extend out and for the pointer (222) to slide along the circumferential direction of the display ring (21) is formed in the side wall of the spring mounting groove (211), and a scale mark line (213) is arranged on the edge of the gap;
the pulley component (3) comprises an annular pulley ring (31) and a movable pulley (32), the inner ring of the pulley ring (31) is fixedly installed on the outer wall of the oil inlet device (1), an annular or spiral pulley groove (311) is formed in the pulley ring (31), the movable pulley (32) is arranged in the pulley groove (311), and the tail end of the rigid rope I (223) is fixedly connected with a rotating shaft of the movable pulley (32); a rigid rope II (33) is arranged in the pulley groove (311), the head end of the rigid rope II (33) is fixedly connected to the inner wall of the pulley groove (311), and the tail end of the rigid rope II (33) extends out of the pulley groove (311) after being wound in a winding groove of the movable pulley (32);
the floating ball (4) is located inside the oil tank (6), the tail end of a rigid rope III (5) is fixedly connected to the floating ball (4), and the head end of the rigid rope III (5) is fixedly connected with the tail end of a rigid rope II (33).
2. A visual gravity fuel filler according to claim 1, wherein: in the pulley assembly (3), the number of the pulley rings (31) is two or more; in two adjacent pulley rings (31), the tail end of a rigid rope II (33) in the pulley ring (31) close to the display component (2) is connected with the rotating shaft of a movable pulley (32) in the other pulley ring (31).
3. A visual gravity fuel filler according to claim 1, wherein: and the display ring (21) is provided with a limiting block I and a limiting block II which are used for limiting the sliding range of the indicating needle (222) in the gap, and the limiting block I and the limiting block II are respectively positioned at two ends of the scale marking line (213).
4. A visual gravity fuel filler according to any one of claims 1-3, wherein: oil feed device (1) includes upper portion funnel (11), lower part funnel (12), snap ring (13), strains a section of thick bamboo (14) and end cone (15), the shrink mouth of upper portion funnel (11) with the shrink mouth of lower part funnel (12) passes through snap ring (13) fixed connection, is cylindric the last port of straining a section of thick bamboo (14) with the open end lateral wall fixed connection of upper portion funnel (11), lower part funnel (12) cover is located strain a section of thick bamboo (14) inboard, strain a section of thick bamboo (14) the lower port with the great one end outside border fixed connection of end cone (15) diameter, the convex vertex of a cone orientation of end cone (15) the open end of lower part funnel (12), the one end that end cone (15) were located is the lower port of oil feed device (1).
5. A visual gravity fuel filler neck according to claim 4, wherein: the open end of upper portion funnel (11) is equipped with straight section of thick bamboo along the coaxial extension of self central axis, straight section of thick bamboo conduct the upper end mouth of oil feed device (1), set up the through-hole that supplies rigidity rope I (223) to pass through on the straight section of thick bamboo lateral wall.
6. A visual gravity fuel filler neck according to claim 5, wherein: the upper portion funnel (11) with all be equipped with waist type through-hole on the conical wall of lower part funnel (12), the open end of lower part funnel (12) is equipped with the sieve of fretwork.
7. A visual gravity fuel filler according to claim 1, wherein: show ring (21) with the inner wall interference fit of the last port of oil feed device (1), pulley ring (31) with the upper port outer wall interference fit of oil feed device (1), just pulley ring (31) are located inside oil tank (6).
8. A visual gravity fuel filler neck according to claim 4, wherein: the outer diameter of the filter cartridge (14) is equal to the inner diameter of the pulley ring (31).
9. A visual gravity fuel filler according to claim 1, wherein: the floating ball (4) has the mass of M and the volume of V; the density of fuel oil in the fuel tank (6) is rho; g represents the acceleration of gravity, and the gravity value of the floating ball (4) is equal to the buoyancy value when the 1/2 volume of the floating ball (4) is submerged into the fuel level in the fuel tank (6), namely Mg =1/2V rho.
10. A scale marking method is characterized in that: the visual gravity fuel filling port is applied to any one of claims 1 to 9, is arranged on the fuel tank (6), fills the fuel into the fuel tank (6) to a rated capacity, takes out the same amount of fuel from the fuel tank (6) in a plurality of times, and marks the residual fuel in the fuel tank (6) on the scale mark line (213) corresponding to the position of the indicator needle (222) after taking out the fuel each time.
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB811129A (en) * | 1956-04-24 | 1959-04-02 | Flight Refueling Ltd | Improvements in or relating to devices for measuring the liquid contents of containers |
| GB812978A (en) * | 1956-04-24 | 1959-05-06 | Candy Filter Company Ltd | Improvements in liquid level indicators |
| US6289728B1 (en) * | 1999-06-28 | 2001-09-18 | Electromechanical Research Laboratories, Inc. | Apparatus and method for determining the amount of liquid contained in a storage tank |
| CN205483187U (en) * | 2016-01-18 | 2016-08-17 | 中国石油天然气股份有限公司 | Oil-water interface indication buoy device |
| CN207050810U (en) * | 2017-07-19 | 2018-02-27 | 益通天然气股份有限公司 | A kind of natural gas storage tank liquid level detection device |
| CN207647655U (en) * | 2017-12-27 | 2018-07-24 | 广州犇鑫通信技术有限公司 | fuel tank with liquid level monitoring function |
| CN108534861A (en) * | 2018-05-31 | 2018-09-14 | 江苏海事职业技术学院 | A kind of diesel engine monitoring instrument |
| CN108744607A (en) * | 2018-06-15 | 2018-11-06 | 管庆芬 | A kind of oily water separating equipment |
| CN209790947U (en) * | 2019-03-22 | 2019-12-17 | 河北金瑞绿源生物科技有限公司 | Neutral oil receiving tank for biodiesel production |
| CN210141928U (en) * | 2019-07-15 | 2020-03-13 | 深圳市地质环境研究院有限公司 | Novel automatic water level measuring device |
| WO2020121582A1 (en) * | 2018-12-14 | 2020-06-18 | 国立研究開発法人宇宙航空研究開発機構 | Flight body |
| CN111486928A (en) * | 2020-04-22 | 2020-08-04 | 陈辉辉 | Sewage treatment pond water level monitoring alarm device |
| CN112284495A (en) * | 2019-11-14 | 2021-01-29 | 王丽 | Water level monitoring device with alarm function and method |
| DE102019007771A1 (en) * | 2019-11-06 | 2021-05-06 | Gisela Kästner | Apparatus for indicating the level of liquids in metal and plastic containers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109313067B (en) * | 2016-07-08 | 2020-08-07 | 东芝产业机器系统株式会社 | Liquid level display device and liquid-cooled electrical equipment |
-
2021
- 2021-10-21 CN CN202111225709.8A patent/CN113650793B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB811129A (en) * | 1956-04-24 | 1959-04-02 | Flight Refueling Ltd | Improvements in or relating to devices for measuring the liquid contents of containers |
| GB812978A (en) * | 1956-04-24 | 1959-05-06 | Candy Filter Company Ltd | Improvements in liquid level indicators |
| US6289728B1 (en) * | 1999-06-28 | 2001-09-18 | Electromechanical Research Laboratories, Inc. | Apparatus and method for determining the amount of liquid contained in a storage tank |
| CN205483187U (en) * | 2016-01-18 | 2016-08-17 | 中国石油天然气股份有限公司 | Oil-water interface indication buoy device |
| CN207050810U (en) * | 2017-07-19 | 2018-02-27 | 益通天然气股份有限公司 | A kind of natural gas storage tank liquid level detection device |
| CN207647655U (en) * | 2017-12-27 | 2018-07-24 | 广州犇鑫通信技术有限公司 | fuel tank with liquid level monitoring function |
| CN108534861A (en) * | 2018-05-31 | 2018-09-14 | 江苏海事职业技术学院 | A kind of diesel engine monitoring instrument |
| CN108744607A (en) * | 2018-06-15 | 2018-11-06 | 管庆芬 | A kind of oily water separating equipment |
| WO2020121582A1 (en) * | 2018-12-14 | 2020-06-18 | 国立研究開発法人宇宙航空研究開発機構 | Flight body |
| CN209790947U (en) * | 2019-03-22 | 2019-12-17 | 河北金瑞绿源生物科技有限公司 | Neutral oil receiving tank for biodiesel production |
| CN210141928U (en) * | 2019-07-15 | 2020-03-13 | 深圳市地质环境研究院有限公司 | Novel automatic water level measuring device |
| DE102019007771A1 (en) * | 2019-11-06 | 2021-05-06 | Gisela Kästner | Apparatus for indicating the level of liquids in metal and plastic containers |
| CN112284495A (en) * | 2019-11-14 | 2021-01-29 | 王丽 | Water level monitoring device with alarm function and method |
| CN111486928A (en) * | 2020-04-22 | 2020-08-04 | 陈辉辉 | Sewage treatment pond water level monitoring alarm device |
Non-Patent Citations (2)
| Title |
|---|
| 正常盘旋飞机油箱液面晃动与结构动力学分析;方雄等;《中国科技论文》;20190215;全文 * |
| 考虑综合因素的飞行器复杂机构可靠性试验研究;孙中超;《工程科技II辑》;20141101;全文 * |
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