Multi-height adjustment oil gun calibration device

Abstract

The utility model relates to a multi-height adjustment oil gun calibration device, which belongs to the technical field of oil gun equipment, and comprises a base, a detection cylinder movably connected to the top of the base, and a protective cover arranged at the top of the detection cylinder, a detection assembly is arranged in the detection cylinder, and a feeding assembly is arranged at the top of the detection cylinder. A supporting assembly is arranged on the outer side of the base. According to the multi-height adjustment oil gun calibration device, fuel oil is injected into a cylinder body of a detection cylinder, when the fuel oil enters a fixed sleeve, a floating block sensor automatically monitors the height of the liquid level along with the change of the liquid level, a temperature sensor senses the temperature of the fuel oil at the moment, and a data processor records current data and transmits the data to a data displayer; when fuel oil is injected into the calibration device, due to the fact that the oil conveying pipe is wrapped with the air return pipe, an oil gas recovery channel is formed in the gap between the air return pipe and the oil conveying pipe, and volatilized oil gas is guided to the air return pipe through the gap.

Description

Technical Field

[0001] The utility model relates to the technical field of fueling gun equipment, in particular to a multi-height adjustable fueling gun calibration device. Background Art

[0002] A fuel dispenser calibration device is a standard measuring instrument for measuring the volume of liquids or gases. It is widely used in the calibration of flow metering instruments. Fuel dispensers are essential equipment at gas stations. To ensure accurate metering, gas stations regularly use a fuel dispenser calibration device.

[0003] At a gas station, when using a fuel pump calibration device to calibrate a fuel dispenser, a certain amount of fuel is first injected into the device from the fuel dispenser to calibrate and verify the metering accuracy of the fuel dispenser. After calibration and verification, the fuel in the device needs to be returned to the fuel tank at the gas station.

[0004] When using a fuel pump calibration device to calibrate a fuel dispenser, multiple calibrations are often required to calculate the average value to eliminate errors. Therefore, it is necessary to inject fuel into the fuel pump calibration device through the fuel dispenser multiple times, then move the fuel pump calibration device to the fuel tank, return the fuel in the fuel pump calibration device to the fuel tank, and then move the fuel pump calibration device to the fuel dispenser for the next calibration, and so on.

[0005] Due to the height difference between the oil inlet of the oil storage tank and the oil outlet at the bottom of the fuel gun calibration device, the oil outlet of the fuel gun calibration device is usually lower than the oil inlet of the oil storage tank. This design may cause the fuel to flow back from the fuel gun calibration device to the oil storage tank poorly, thereby causing the fuel to be retained in the fuel gun calibration device, thereby affecting the measurement accuracy. Therefore, a multi-height adjustment fuel gun calibration device is proposed. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the utility model provides a multi-height adjustable fuel gun calibration device with the advantages of good flexibility and accuracy. It solves the problem that the oil outlet at the bottom of the fuel gun calibration device is lower than the oil inlet of the oil storage tank, resulting in poor fuel reflux and liquid retention, which affects the measurement accuracy of the fuel gun calibration device.

[0007] To achieve the above-mentioned goals of good flexibility and good accuracy, the present invention provides the following technical solution: a multi-height adjustable fueling gun calibration device, comprising a base, a detection cylinder movably connected to the top of the base, and a protective cover disposed on the top of the detection cylinder. A detection assembly is disposed inside the detection cylinder, a feeding assembly is disposed on the top of the detection cylinder, and a support assembly is disposed on the outside of the base.

[0008] The detection component includes a fixed sleeve fixedly installed at the top of the detection cylinder, a detection rod arranged at the bottom of the fixed sleeve, a floating block sensor arranged outside the detection rod, a temperature sensor fixedly installed outside the floating block sensor, a data processor fixedly installed on the inner side of the protective cover, a signal transceiver fixedly installed on the inner wall of the protective cover, a data display fixedly installed on the side of the protective cover, a signal antenna fixedly installed on the side of the protective cover, and a power module fixedly installed on the top of the base;

[0009] The feeding component includes a connecting cylinder threadedly connected to the top of the detection cylinder, a return air cylinder threadedly connected to the top of the connecting cylinder, an oil delivery pipe arranged inside the return air cylinder, and a discharge valve arranged at the bottom of the detection cylinder;

[0010] The support component includes several wheel frames fixedly installed at the bottom of the base, moving wheels rotatably connected to the bottom of the wheel frames, several sliding tracks fixedly installed on the top of the base, and an electric lifting rod fixedly installed on the top of the base.

[0011] Furthermore, a buckle seat is arranged at the top of the detection cylinder. The protective cover is inserted and fixed outside the buckle seat and fixedly installed with the detection cylinder through a buckle. A limiting notch is opened at the top of the protective cover, and the top of the return air cylinder penetrates through the limiting notch to the outside of the protective cover.

[0012] Furthermore, the top end of the barrel of the detection cylinder is conical. The bottom end of the fixed sleeve is fixedly installed on the conical top surface of the detection cylinder. An opening communicating with the inside of the detection cylinder is opened at the bottom of the fixed sleeve, and the top of the detection rod is inserted into the opening at the bottom of the detection cylinder.

[0013] Furthermore, the bottom of the detection rod is fixedly installed with the bottom of the detection cylinder. The floating block sensor is located outside the detection rod and is slidably connected to the detection rod.

[0014] Furthermore, a limiting sleeve is arranged on the inner side wall of the connecting cylinder. The oil delivery pipe vertically penetrates through the limiting sleeve and is slidably connected to the limiting sleeve. Several air permeation holes are opened inside the limiting sleeve.

[0015] Furthermore, the return air cylinder is a hollow structure in the shape of a Chinese character 'zhong', and the upper and lower outer walls are both inclined planes with a certain angle. Inlet and outlet slots are opened at both the upper and lower ends of the return air cylinder, and a fixed cylinder connected by threads is arranged in the top slot of the return air cylinder.

[0016] Furthermore, the oil delivery pipe is of a Y-shaped structure. The oil delivery pipe vertically penetrates through the fixed cylinder to the inside of the return air cylinder and is rotatably connected to the fixed cylinder. Several air guide holes for cooperating with the fixed cylinder are opened on the surface of the side wall at the top of the oil delivery pipe.

[0017] Furthermore, the side surface of the moving slider inside the sliding track is fixedly installed with the side wall of the detection cylinder. A fixed block is arranged on the side of the detection cylinder, and the top of the lifting rod of the electric lifting rod is fixedly installed.

[0018] Furthermore, a bottom handle is fixedly installed on the side of the base, a middle handle is fixedly installed on both sides of the outer wall of the detection tube, and a top handle is fixedly installed on the side of the protective cover. The lengths of the bottom handle, the middle handle and the top handle are adapted to be on the same plane, and the bottom handle presents a clear raised feature relative to the middle handle and the top handle located on the same plane.

[0019] Compared with the prior art, the present invention provides a multi-height adjustable fuel gun calibration device, which has the following beneficial effects:

[0020] 1. The multi-height adjustment fueling gun calibration device injects fuel into the cylinder of the detection cylinder. As more and more fuel is injected, when the fuel enters the fixed sleeve, the float sensor automatically monitors the liquid level height as the liquid level changes, the temperature sensor senses the oil temperature at this time, and the data processor records the current data and transmits it to the data display, thereby displaying the current fuel level and temperature information to the user in real time. When the fuel is injected into the calibration device, since the return air pipe is wrapped around the outside of the oil pipeline, the gap between the return air pipe and the oil pipeline forms an oil and gas recovery channel. Through this gap, the volatilized oil and gas are guided to the return air pipe and transported to the air intake of the fueling gun through the oil and gas recovery path.

[0021] 2. The multi-height adjustment fueling gun calibration device is raised and lowered by activating the electric lifting rod, thereby driving the relative movement between the base and the detection cylinder. The bottom of the detection cylinder can be moved upward away from the base, or the bottom of the detection cylinder can be moved downward close to the base, so that the position of the discharge valve below the detection cylinder can be adjusted to a position higher than the inlet of the oil storage tank, ensuring smooth fuel return. At the same time, the sliding track provides additional stability for the base and the detection cylinder to prevent the detection cylinder from tilting or shaking during the lifting process, ensuring the stability and safety of the equipment operation. A wheel frame is provided under the base to fix the moving wheels, which is convenient for long-distance movement between the fueling gun and the oil storage tank, so that the multi-height adjustment fueling gun calibration device can be easily promoted, reducing the burden of manual handling, improving work efficiency, and solving the problem that the oil outlet at the bottom of the fueling gun calibration device is lower than the oil inlet of the oil storage tank, resulting in poor fuel return and liquid retention affecting the measurement accuracy of the fueling gun calibration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the utility model;

[0023] Figure 2 This is a side sectional view of the utility model;

[0024] Figure 3 This is a central sectional view of the utility model;

[0025] Figure 4For this utility model Figure 3 A magnified view of the structure in the middle.

[0026] In the figure: 1. Base; 2. Detection cylinder; 3. Protective cover; 4. Detection assembly; 401. Fixed sleeve; 402. Detection rod; 403. Float sensor; 404. Temperature sensor; 405. Data processor; 406. Signal transceiver; 407. Data display; 408. Signal antenna; 409. Power module; 5. Feed assembly; 501. Connecting cylinder; 502. Return cylinder; 503. Oil pipeline; 504. Discharge valve; 505. Limit sleeve; 506. Air vent; 507. Fixed cylinder; 6. Support assembly; 601. Wheel frame; 602. Moving wheel; 603. Sliding track; 604. Electric lifting rod; 605. Bottom handle; 606. Middle handle; 607. Top handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1 to 4 In this embodiment, the multi-height adjustable fuel gun calibration device includes a base 1, a detection cylinder 2 movably connected to the top of the base 1, a protective cover 3 provided on the top of the detection cylinder 2, a detection assembly 4 provided inside the detection cylinder 2, a feeding assembly 5 provided on the top of the detection cylinder 2, and a support assembly 6 provided on the outside of the base 1;

[0029] The detection component 4 includes a fixed sleeve 401 fixedly installed on the top of the detection tube 2, a detection rod 402 arranged at the bottom of the fixed sleeve 401, a floating block sensor 403 arranged on the outside of the detection rod 402, a temperature sensor 404 fixedly installed on the outside of the floating block sensor 403, a data processor 405 fixedly installed on the inner side of the protective cover 3, a signal transceiver 406 fixedly installed on the inner wall of the protective cover 3, a data display 407 fixedly installed on the side of the protective cover 3, a signal antenna 408 fixedly installed on the side of the protective cover 3, and a power supply module 409 fixedly installed on the top of the base 1.

[0030] In this embodiment, a snap-fit ​​seat is provided at the top of the detection cylinder 2. The protective cover 3 is plugged and fixed to the outside of the snap-fit ​​seat and fixed to the detection cylinder 2 via snaps. A limiting notch is defined at the top of the protective cover 3, and the top of the return air cylinder 502 extends through the limiting notch to the outside of the protective cover 3. The top of the cylinder body of the detection cylinder 2 is conical in shape. The bottom end of the fixed sleeve 401 is fixedly mounted on the conical top surface of the detection cylinder 2. The bottom of the fixed sleeve 401 has an opening connected to the interior of the detection cylinder 2. The top of the detection rod 402 is plugged into the interior of the bottom opening of the detection cylinder 2. The bottom of the detection rod 402 is fixedly mounted to the bottom of the detection cylinder 2. The float sensor 403 is located on the outside of the detection rod 402 and is slidably connected to the detection rod 402.

[0031] A float sensor 403 is provided for detecting the fuel level. When fuel is injected from the fuel nozzle into the multi-height adjustment fuel nozzle calibration device, the fuel flows into the cylinder body of the detection cylinder 2. As more and more fuel is injected, when the fuel enters the casing, the float sensor 403 automatically monitors the liquid level height as the liquid level changes. The temperature sensor 404 senses the oil temperature at this time. The data processor 405 records the current data and transmits it to the data display 407, thereby displaying information such as the current fuel level and temperature to the user in real time.

[0032] In this embodiment, the feeding assembly 5 includes a connecting cylinder 501 threadedly connected to the top of the detection cylinder 2, an air return cylinder 502 threadedly connected to the top of the connecting cylinder 501, an oil pipe 503 arranged inside the air return cylinder 502, and a discharge valve 504 arranged at the bottom of the detection cylinder 2.

[0033] The inner wall of the connecting tube 501 is provided with a limiting sleeve 505. The oil delivery pipe 503 vertically passes through the limiting sleeve 505 and is slidably connected to the limiting sleeve 505. The limiting sleeve 505 is provided with a number of air holes 506. The return air cylinder 502 has a hollow structure in the shape of a Chinese character, and the upper and lower outer walls are both inclined surfaces with a certain angle. The upper and lower ends of the return air cylinder 502 have entry and exit slots. The top slot of the return air cylinder 502 is provided with a fixed cylinder 507 that is threadedly connected. The oil delivery pipe 503 has a Y-shaped structure. The oil delivery pipe 503 vertically passes through the fixed cylinder 507 and enters the interior of the return air cylinder 502 and is rotatably connected to the fixed cylinder 507. The top side wall surface of the oil delivery pipe 503 is provided with a number of air guide holes for use with the fixed cylinder 507.

[0034] By installing a return air cylinder 502 above the test cylinder 2 and in conjunction with the oil delivery pipe 503, the calibration device's fuel filling port features an environmentally friendly oil and gas recovery function. The oil delivery pipe 503 acts as the oil inlet, injecting fuel into the calibration device. The return air pipe wraps around the outside of the oil delivery pipe 503, and the gap between the return air pipe and the oil delivery pipe 503 forms an oil and gas recovery channel. Through this gap, volatilized oil and gas are guided to the return air cylinder 502 and transported to the fuel nozzle's intake port via the oil and gas recovery path. This design effectively recovers oil and gas, reduces volatile gas emissions, meets environmental requirements, and ensures the safety and efficiency of the refueling process.

[0035] In this embodiment, the support assembly 6 includes several wheel frames 601 fixedly installed at the bottom of the base 1, movable wheels 602 rotatably connected to the bottom of the wheel frames 601, several sliding rails 603 fixedly installed at the top of the base 1, and an electric lifting rod 604 fixedly installed at the top of the base 1.

[0036] The side of the movable slider inside the sliding track 603 is fixedly installed to the side wall of the detection cylinder 2. The side of the detection cylinder 2 is provided with a fixed block and the top of the lifting rod of the electric lifting rod 604 is fixedly installed.

[0037] By installing a sliding track 603 on the top of base 1 and equipping it with an electric lift rod 604, the height of the cylinder can be easily adjusted as needed, thereby controlling the height of the oil outlet at the bottom of the cylinder. This adjustment process ensures that the oil outlet is higher than the oil tank inlet, preventing obstruction of fuel backflow. Multiple sliding tracks 603 are installed on the side of base 1 between the detection cylinder 2 and base 1 to support the detection cylinder 2. In addition, the sliding tracks 603 provide additional stability, preventing the detection cylinder 2 from tilting or shaking during the lifting process, ensuring stable and safe operation of the equipment.

[0038] In this embodiment, a bottom handle 605 is fixedly installed on the side of the base 1, a middle handle 606 is fixedly installed on both sides of the outer wall of the detection tube 2, and a top handle 607 is fixedly installed on the side of the protective cover 3. The lengths of the bottom handle 605, the middle handle 606 and the top handle 607 are adapted to be on the same plane, and the bottom handle 605 presents a distinct raised feature relative to the middle handle 606 and the top handle 607 located on the same plane.

[0039] By providing a support surface on one side of the device with a matching bottom handle 605, middle handle 606, and top handle 607, the device can be stably placed horizontally on a horizontal surface or in a car trunk, ensuring that the device can be placed horizontally and avoid shaking, thereby effectively protecting the glass tube and other fragile components inside the device from damage. In addition, when the relatively wide bottom handle 605 supports the device, the overall center of gravity of the multi-height adjustable fueling gun calibration device when placed horizontally shifts downward, thereby more evenly distributing its weight during movement and preventing tilting or shaking caused by center of gravity shift. At the same time, the larger protruding portion of the base forms a wider support base, further increasing the stability of the device on uneven ground or in dynamic environments, significantly reducing the risk of the device tipping over, ensuring higher reliability and safety under different operating conditions, and allowing the device to remain stable during transportation and avoid unnecessary collisions and wear.

[0040] The working principle of the above embodiment is:

[0041] By injecting fuel into the cylinder of the detection cylinder 2, as more and more fuel is injected, when the fuel enters the fixed sleeve 401, the float sensor 403 automatically monitors the liquid level height as the liquid level changes, the temperature sensor 404 senses the oil temperature at this time, and the data processor 405 records the current data and transmits it to the data display 407, thereby displaying the current fuel level and temperature and other information to the user in real time. When the fuel is injected into the calibration device, since the return air pipe is wrapped around the outside of the oil delivery pipe 503, the gap between the return air pipe and the oil delivery pipe 503 forms an oil and gas recovery channel. Through this gap, the volatilized oil and gas are guided to the return air pipe and transported to the air intake of the fuel gun through the oil and gas recovery path.

[0042] In addition, by starting the electric lifting rod 604 to lift and lower, the base 1 and the detection cylinder 2 are driven to move relative to each other, so that the bottom of the detection cylinder 2 can be moved upward away from the base 1, or the bottom of the detection cylinder 2 can be moved downward close to the base 1, so that the position of the discharge valve 504 below the detection cylinder 2 can be adjusted to a position higher than the oil tank inlet, ensuring smooth fuel return. At the same time, the sliding rail 603 provides additional stability for the base 1 and the detection cylinder 2 to prevent the detection cylinder 2 from tilting or shaking during the lifting process, ensuring the stability and safety of the equipment operation. A wheel frame 601 is provided under the base 1 to fix the moving wheel 602, which is convenient for long-distance movement between the fuel gun and the oil tank, so that the multi-height adjustment fuel gun calibration device can be easily promoted, reducing the burden of manual handling and improving work efficiency, thereby solving the problem that the oil outlet at the bottom of the fuel gun calibration device is lower than the oil inlet of the oil tank, resulting in poor fuel return and liquid retention affecting the measurement accuracy of the fuel gun calibration device.

[0043] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0045] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A multi-height adjustable fuel gun calibration device, comprising a base (1), a detection cylinder (2) movably connected to the top of the base (1), and a protective cover (3) arranged on the top of the detection cylinder (2), characterized in that: A detection assembly (4) is provided inside the detection cylinder (2), a feeding assembly (5) is provided on the top of the detection cylinder (2), and a supporting assembly (6) is provided on the outside of the base (1); The detection assembly (4) comprises a fixed sleeve (401) fixedly mounted on the top of the detection tube (2), a detection rod (402) arranged at the bottom of the fixed sleeve (401), a floating block sensor (403) arranged outside the detection rod (402), a temperature sensor (404) fixedly mounted outside the floating block sensor (403), a data processor (405) fixedly mounted on the inner side of the protective cover (3), a signal transceiver (406) fixedly mounted on the inner side wall of the protective cover (3), a data display (407) fixedly mounted on the side of the protective cover (3), a signal antenna (408) fixedly mounted on the side of the protective cover (3), and a power supply module (409) fixedly mounted on the top of the base (1); The feed assembly (5) comprises a connecting cylinder (501) threadedly connected to the top of the detection cylinder (2), an air return cylinder (502) threadedly connected to the top of the connecting cylinder (501), an oil delivery pipe (503) arranged inside the air return cylinder (502), and a discharge valve (504) arranged at the bottom of the detection cylinder (2); The support assembly (6) comprises a plurality of wheel frames (601) fixedly mounted on the bottom of the base (1), moving wheels (602) rotatably connected to the bottom of the wheel frames (601), a plurality of sliding rails (603) fixedly mounted on the top of the base (1), and an electric lifting rod (604) fixedly mounted on the top of the base (1).

2. The multi-height adjustable fuel gun calibration device according to claim 1, characterized in that: A snap seat is provided on the top of the detection cylinder (2), the protective cover (3) is plugged and fixed on the outside of the snap seat and fixed to the detection cylinder (2) by snap fastening, a limiting notch is provided on the top of the protective cover (3), and the top of the return air cylinder (502) passes through the limiting notch to the outside of the protective cover (3).

3. The multi-height adjustable fuel gun calibration device according to claim 1, characterized in that: The top end of the detection cylinder (2) is conical, the bottom end of the fixed sleeve (401) is fixedly mounted on the conical top surface of the detection cylinder (2), the bottom of the fixed sleeve (401) is provided with an opening connected to the interior of the detection cylinder (2), and the top end of the detection rod (402) is plugged into the interior of the bottom opening of the detection cylinder (2).

4. The multi-height adjustable fuel gun calibration device according to claim 1, characterized in that: The bottom of the detection rod (402) and the bottom of the detection tube (2) are fixedly installed, and the floating block sensor (403) is located outside the detection rod (402) and is slidably connected to the detection rod (402).

5. The multi-height adjustable fuel gun calibration device according to claim 1, characterized in that: A limiting sleeve (505) is provided on the inner side wall of the connecting cylinder (501), the oil delivery pipe (503) vertically passes through the limiting sleeve (505) and is slidably connected to the limiting sleeve (505), and a plurality of air holes (506) are provided inside the limiting sleeve (505).

6. The multi-height adjustable fuel gun calibration device according to claim 1, characterized in that: The return air cylinder (502) is a hollow structure in the shape of a Chinese character, and the upper and lower outer walls are both inclined surfaces with a certain angle. The upper and lower ends of the return air cylinder (502) are provided with inlet and outlet slots, and a fixing cylinder (507) connected by thread is provided in the top slot of the return air cylinder (502).

7. The multi-height adjustable fuel gun calibration device according to claim 6, characterized in that: The oil delivery pipe (503) is a Y-shaped structure. The oil delivery pipe (503) vertically penetrates the fixed cylinder (507) to the interior of the return air cylinder (502) and is rotatably connected to the fixed cylinder (507). The top side wall surface of the oil delivery pipe (503) is provided with a plurality of air guide holes used in conjunction with the fixed cylinder (507).

8. The multi-height adjustable fuel gun calibration device according to claim 1, characterized in that: The side of the movable slider inside the sliding track (603) is fixedly mounted to the side wall of the detection cylinder (2), and the side of the detection cylinder (2) is provided with a fixed block and the top of the lifting rod of the electric lifting rod (604) is fixedly mounted.

9. The multi-height adjustable fuel gun calibration device according to claim 1, characterized in that: A bottom handle (605) is fixedly mounted on the side of the base (1), a middle handle (606) is fixedly mounted on both sides of the outer wall of the detection tube (2), and a top handle (607) is fixedly mounted on the side of the protective cover (3). The lengths of the bottom handle (605), the middle handle (606) and the top handle (607) are adapted to be on the same plane, and the bottom handle (605) presents a distinct raised feature relative to the middle handle (606) and the top handle (607) located on the same plane.

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