Metrological verification device for oiling machine

Abstract

The utility model discloses a metrological verification device for an oiling machine, and belongs to the technical field of oiling machine verification. The problem that in the prior art, a metering tank of an oiling machine is lack of protection when being transported through a car hopper is solved. The device mainly comprises a protection box, the bottom of the front end of the protection box is rotationally connected with a protection door through a hinge, a lock is installed between the top of the protection door and the protection box, an oil storage tank is installed in the protection box and installed on an oil tank support, idler wheels are installed at the bottom of the oil tank support, and a guide structure is installed between the oil tank support and the protection box. The top of the oil storage tank is provided with the metering tank and connected with the oil inlet pipe, and the bottom of the oil storage tank is connected with the oil outlet pipe.

Description

Technical Field

[0001] This utility model belongs to the field of fuel dispenser calibration technology, and more specifically, it relates to a metering calibration device for fuel dispensers. Background Technology

[0002] Regulatory authorities need to periodically conduct metering verification on fuel dispensers, which requires the use of metering tanks. Metering tanks are common metering devices in existing technology. Their principle is to use a volume comparison method to detect the error between the displayed value of the fuel dispenser and the actual amount of fuel dispensed, thereby achieving the metering verification of the fuel dispenser.

[0003] Currently, when regulatory authorities conduct metering inspections on gas station pumps, they need to transport the metering cylinders to the gas station to be inspected by vehicle. Pickup trucks or light trucks are commonly used for this purpose, and the cylinders are secured to the truck bed during transport. However, this method of transporting the cylinders in truck beds presents a lack of protection, allowing dust and rainwater to contaminate them, and also making them susceptible to impacts and collisions. Summary of the Invention

[0004] The purpose of this invention is to provide a metering verification device for fuel dispensers, so as to overcome the problem that fuel dispenser metering tanks lack protection when transported by truck bed in the prior art.

[0005] This utility model is achieved using the following technical solution: a metering verification device for a fuel dispenser, comprising a protective box, a protective door rotatably connected to the bottom of the front end of the protective box via a hinge, a lock installed between the top of the protective door and the protective box, an oil storage tank installed inside the protective box, the oil storage tank being mounted on an oil tank bracket, rollers installed at the bottom of the oil tank bracket, a guide structure installed between the oil tank bracket and the protective box, a metering tank installed on the top of the oil storage tank and connected to an inlet pipe, an outlet pipe connected to the bottom of the oil storage tank, and a valve installed on the outlet pipe.

[0006] Furthermore, the metering tank includes a tank body, a metering neck at the top of the tank body, an oil inlet hopper installed on the upper side of the metering neck, a transparent tube connected to the top of the tank body, the top of the transparent tube being inserted into the oil inlet hopper, a measuring scale on one side of the transparent tube on the tank body, and the bottom of the tank body being fixedly installed on the oil storage tank by support legs.

[0007] Furthermore, three support legs are installed at intervals along the circumferential direction at the bottom of the tank body; each support leg includes a support leg seat, on which a lead screw is installed; an mounting plate is installed on the upper side of each support leg seat on the outer wall of the tank body, the mounting plate has a light hole, the lead screw passes through the light hole, and nuts are installed on the upper and lower sides of the mounting plate respectively; a base is welded to the lower side of each support leg seat at the top of the oil storage tank, the base has a threaded hole, and a connecting hole is opened on the support leg seat to mate with the threaded hole of the corresponding base; support leg bolts are installed between the connecting hole on the support leg seat and the threaded hole on the corresponding base.

[0008] Furthermore, the bottom of the tank is connected to an oil drain pipe, a valve is installed on the oil drain pipe, and the end of the oil drain pipe 20 and the front end of the oil inlet pipe are respectively equipped with mutually matching pipe joints, and the oil inlet pipe 8 is a flexible hose.

[0009] Furthermore, a traction plate is installed on the fuel tank bracket, a traction hole is opened on the traction plate, a traction rod passes through the traction hole, a stop is installed at the rear end of the traction rod, the outer diameter of the stop is larger than the inner diameter of the traction hole, and a ring-shaped traction handle is provided at the front end of the traction rod.

[0010] Furthermore, the bottom of the oil storage tank is conical.

[0011] Furthermore, baffles are installed on both sides of the inner wall of the protective door.

[0012] Furthermore, the guiding structure includes guide beams installed on both sides of the inner wall of the protective box, and guide grooves are provided on the guide beams. Guide plates that cooperate with the guide grooves on both sides are respectively installed on both sides of the oil tank bracket, and the guide plates on both sides are respectively inserted into the guide grooves of the guide beams on the corresponding sides.

[0013] Furthermore, an upper positioning hole is provided on the front side of the top surface of the guide beam, and a lower positioning hole is provided on the front side of the top surface of the guide plate to cooperate with the upper positioning hole. Positioning bolts are inserted into the upper positioning hole and the lower positioning hole, and positioning nuts are installed at the bottom of the positioning bolts.

[0014] Furthermore, fixing plates are installed on both sides of the outer wall of the protective box, and fixing holes are provided on the fixing plates.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model provides excellent protection for the metering tank and oil storage tank by setting up a protective box and installing both the oil storage tank and the metering tank inside the protective box, thus preventing dust, rainwater, and other contaminants from polluting the metering tank and oil storage tank. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the fuel tank bracket described in this utility model when it is completely moved out of the protective box;

[0018] Figure 2 yes Figure 1 A magnified view of a section at point I;

[0019] Figure 3 This is a schematic diagram of the protective door described in this utility model when it is opened;

[0020] Figure 4 yes Figure 3 Enlarged view of a section at point II;

[0021] Figure 5 This is a schematic diagram of the protective door described in this utility model when it is closed.

[0022] In the diagram: 1. Protective box; 2. Protective door; 3. Lock; 4. Oil storage tank; 5. Oil tank bracket; 6. Roller; 7. Metering tank; 8. Oil inlet pipe; 9. Oil outlet pipe; 10. Tank body; 11. Metering neck; 12. Oil inlet hopper; 13. Transparent tube; 14. Measuring tape; 15. Outrigger seat; 16. Screw rod; 17. Mounting plate; 18. Base; 19. Outrigger bolt; 20. Oil drain pipe; 21. Traction plate; 22. Traction rod; 23. Traction handle; 24. Stop block; 25. Guide beam; 26. Guide plate; 27. Positioning bolt; 28. Fixing plate. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the scope of protection of this utility model.

[0024] A metering verification device for a fuel dispenser includes a protective box 1. Fixing plates 28 are installed on both sides of the outer wall of the protective box 1. Fixing holes are provided on the fixing plates 28. This invention is fixedly installed on the truck bed of a vehicle using the fixing plates 28. During installation, a certain thickness of iron plate needs to be pre-welded onto the surface of the truck bed. Threaded holes are made on the iron plate, and then the fixing plates 28 on the protective box 1 are placed on the iron plate. The fixing plates 28 and the iron plate are fixed together with bolts, and a rubber gasket is installed between the fixing plates 28 and the iron plate.

[0025] The bottom of the front end of the protective box 1 is hinged to a protective door 2, which can rotate up and down relative to the bottom of the protective box 1. When it is necessary to pull the oil tank 4 out of the protective box 1, we rotate the protective door 2 downwards. After the protective door 2 falls onto the truck bed, the top surface of the protective door 2 is flush with the bottom surface of the protective box 1.

[0026] A lock 3 is installed between the top of the protective door 2 and the protective box 1. This invention uses the lock 3 to fix the protective door 2 and the protective box 1 relatively. When it is necessary to close the protective door 2, we rotate the protective door 2 upward and lock the protective door 2 onto the protective box 1 using the lock 3.

[0027] The protective housing 1 houses an oil storage tank 4, which temporarily stores fuel flowing from the metering tank 7. Currently, when using the metering tank 7 to calibrate a fuel dispenser, multiple calibrators are often required. Furthermore, the tank needs to be lubricated before the first calibrator test. Both lubrication of the metering tank 7 and the fuel discharged after each calibration need to be poured into the gas station's storage container. Each time fuel is discharged, the metering tank 7 needs to be moved to the gas station's storage container, which is cumbersome and reduces calibration efficiency. This invention, by incorporating the oil storage tank 4, makes discharging fuel from the metering tank 7 much more convenient. It eliminates the need to move the metering tank 7; once the storage tank 4 is full of fuel, the invention can be moved by vehicle to the gas station's storage container.

[0028] The oil storage tank 4 is mounted on the oil tank bracket 5, and the bottom of the oil tank bracket 5 is equipped with rollers 6. By setting the rollers 6, the oil tank bracket 5 can be moved conveniently inside the protective box 1. Three rollers 6 can be installed on each side of the bottom of the oil tank bracket 5.

[0029] A guide structure is installed between the fuel tank bracket 5 and the protective box 1. The guide structure includes guide beams 25 installed on both sides of the inner wall of the protective box 1. Guide grooves are provided on the guide beams 25. Guide plates 26 that cooperate with the guide grooves on both sides are installed on both sides of the fuel tank bracket 5. The guide plates 26 on both sides are respectively inserted into the guide grooves of the guide beams 25 on the corresponding sides.

[0030] The guide beam 25 and guide plate 26 described in this utility model can guide the fuel tank bracket 5. When the fuel tank bracket 5 moves back and forth, the guide plate 26 will move back and forth along the guide groove of the guide beam 25.

[0031] The guide beam 25 has an upper positioning hole on its front side on its top surface, and the guide plate 26 has a lower positioning hole on its front side on its top surface that mates with the upper positioning hole. Positioning bolts 27 are inserted into the upper and lower positioning holes, and positioning nuts are installed at the bottom of the positioning bolts 27. Both the upper and lower positioning holes are through holes.

[0032] This utility model achieves relative fixation between the fuel tank bracket 5 and the protective box 1 by setting upper and lower positioning holes. When the fuel tank bracket 5 is fully inserted into the protective box 1, that is, when the guide plate 26 contacts the rear end of the guide groove, the upper positioning hole on the guide beam 25 and the lower positioning hole on the guide plate 26 will be aligned. At this time, the positioning bolt 27 is passed through the upper positioning hole and the lower positioning hole from top to bottom, and a positioning nut is installed at the bottom of the positioning bolt 27. At this time, the relative fixation between the protective box 1 and the fuel tank bracket 5 can be achieved.

[0033] A metering tank 7 is installed on the top of the fuel storage tank 4 and connected to an inlet pipe 8. Fuel is supplied to the fuel storage tank 4 through the inlet pipe 8, which is a flexible hose; a valve may also be installed on the inlet pipe 8. A drain pipe 20 is connected to the bottom of the tank body 10 of the metering tank 7. A valve is installed on the drain pipe 20, and matching pipe fittings are installed at the end of the drain pipe 20 and the front end of the inlet pipe 8. The inlet pipe 8 and the drain pipe 20 are connected through these pipe fittings, thereby allowing the fuel in the metering tank 7 to be drained into the fuel storage tank 4.

[0034] The bottom of the fuel tank 4 is connected to a fuel outlet pipe 9, and a valve is installed on the fuel outlet pipe 9. A pipe connector is installed at the end of the fuel outlet pipe 9, allowing fuel to be discharged from the fuel tank 4. The bottom of the fuel tank 4 is conical. By making the bottom of the fuel tank 4 conical, this invention facilitates the emptying of fuel from the fuel tank 4.

[0035] The metering tank 7 includes a tank body 10. A metering neck 11 is provided at the top of the tank body 10. An oil inlet 12 is installed on the upper side of the metering neck 11. A transparent tube 13 is also connected to the top of the tank body 10, with the top of the transparent tube 13 inserted into the oil inlet 12. A measuring scale 14 is provided on one side of the transparent tube 13. The bottom of the tank body 10 is fixedly mounted on the oil storage tank 4 by support legs. A level is also installed on the top of the tank body 10 of this invention.

[0036] The tank body 10 has three support legs spaced circumferentially at its bottom. These support legs utilize an anchor bolt structure and include a support leg seat 15. A lead screw 16 is mounted on the support leg seat 15. An mounting plate 17 is installed on the upper side of each support leg seat 15 on the outer wall of the tank body 10. The mounting plate 17 has a light hole through which the lead screw 16 passes. The inner diameter of the light hole is larger than the outer diameter of the lead screw 16. Nuts are installed on the upper and lower sides of the mounting plate 17. The mounting plate 17 is supported by the nut on its lower side, and the nut on its upper side can be tightened onto the nut on its lower side. When the tank body 10 tilts to one side, it can be leveled by rotating the nuts on the upper and lower sides of the mounting plate 17.

[0037] The top of the oil storage tank 4 is welded with a base 18 on the lower side of each support leg 15. The base 18 has threaded holes, and the support leg 15 has connecting holes that mate with the corresponding threaded holes on the base 18. Support leg bolts 19 are installed between the connecting holes on the support leg 15 and the corresponding threaded holes on the base 18. By providing the bases 18, this invention facilitates the assembly and disassembly of the metering tank 7 on the oil storage tank 4. At least two metering tanks 7 of different capacities can be installed on the oil storage tank 4 of this invention.

[0038] A traction plate 21 is installed on the fuel tank bracket 5. A traction hole is provided on the traction plate 21, through which a traction rod 22 passes. A stop is installed at the rear end of the traction rod 22, the outer diameter of which is larger than the inner diameter of the traction hole. A ring-shaped traction handle 23 is provided at the front end of the traction rod 22. The traction rod 22 of this invention can slide back and forth relative to the traction hole. By providing the traction rod 22, the fuel tank bracket 5 can be easily pulled outwards.

[0039] The protective door 2 has two stops 24 installed on its inner walls. By setting the stops 24, this utility model can limit the outward movement of the fuel tank bracket 5. When the fuel tank bracket 5 moves outward to its maximum position, the roller 6 will contact the stops 24, and the stops 24 will restrict the fuel tank bracket 5 from moving outward further.

Claims

1. A metering calibration device for a fuel dispenser, characterized in that, The protective box (1) is connected to a protective door (2) at the bottom of the front end of the protective box (1) by a hinge. A lock (3) is installed between the top of the protective door (2) and the protective box (1). An oil storage tank (4) is installed inside the protective box (1). The oil storage tank (4) is installed on an oil tank bracket (5). A roller (6) is installed at the bottom of the oil tank bracket (5). A guide structure is installed between the oil tank bracket (5) and the protective box (1). A metering tank (7) is installed on the top of the oil storage tank (4) and connected to an oil inlet pipe (8). An oil outlet pipe (9) is connected to the bottom of the oil storage tank (4). A valve is installed on the oil outlet pipe (9).

2. The metering calibration device for fuel dispensers according to claim 1, characterized in that, The metering tank (7) includes a tank body (10), a metering neck (11) is provided on the top of the tank body (10), an oil inlet hopper (12) is installed on the upper side of the metering neck (11), a transparent tube (13) is also connected to the top of the tank body (10), the top of the transparent tube (13) is inserted into the oil inlet hopper (12), a measuring scale (14) is provided on one side of the transparent tube (13) of the tank body (10), and the bottom of the tank body (10) is fixedly installed on the oil storage tank (4) by the support legs.

3. The metering calibration device for fuel dispensers according to claim 2, characterized in that, The bottom of the tank (10) is equipped with three legs at intervals along the circumferential direction; each leg includes a leg seat (15), and a screw rod (16) is installed on the leg seat (15). An installation plate (17) is installed on the upper side of each leg seat (15) on the outer wall of the tank (10). The installation plate (17) has a light hole, and the screw rod (16) passes through the light hole. Nuts are installed on the upper and lower sides of the installation plate (17) respectively on the screw rod (16). A base (18) is welded to the bottom side of each leg seat (15) on the top of the oil storage tank (4). A threaded hole is opened on the base (18). A connection hole is opened on the leg seat (15) to cooperate with the threaded hole of the corresponding base (18). A leg bolt (19) is installed between the connection hole on the leg seat (15) and the threaded hole on the corresponding base (18).

4. The metering verification device for fuel dispensers according to claim 2, characterized in that, The bottom of the tank (10) is connected to an oil drain pipe (20), a valve is installed on the oil drain pipe (20), and the end of the oil drain pipe (20) and the front end of the oil inlet pipe (8) are respectively equipped with matching pipe joints. The oil inlet pipe (8) is a flexible hose.

5. The metering verification device for fuel dispensers according to claim 1, characterized in that, The oil tank bracket (5) is equipped with a traction plate (21), and a traction hole is provided on the traction plate (21). A traction rod (22) passes through the traction hole. A stop is installed at the rear end of the traction rod (22). The outer diameter of the stop is larger than the inner diameter of the traction hole. A ring-shaped traction handle (23) is provided at the front end of the traction rod (22).

6. The metering calibration device for fuel dispensers according to claim 1, characterized in that, The bottom of the oil storage tank (4) is conical.

7. The metering calibration device for fuel dispensers according to claim 1, characterized in that, The protective door (2) has baffles (24) installed on both sides of its inner wall.

8. The metering calibration device for fuel dispensers according to claim 1, characterized in that, The guide structure includes guide beams (25) installed on both sides of the inner wall of the protective box (1). Guide grooves are provided on the guide beams (25). Guide plates (26) that cooperate with the guide grooves on both sides are installed on both sides of the oil tank bracket (5). The guide plates (26) on both sides are inserted into the guide grooves of the guide beams (25) on the corresponding sides.

9. The metering verification device for a fuel dispenser according to claim 8, characterized in that, The guide beam (25) has an upper positioning hole on the front side of its top surface, and the guide plate (26) has a lower positioning hole on the front side of its top surface that cooperates with the upper positioning hole. A positioning bolt (27) is inserted into the upper positioning hole and the lower positioning hole, and a positioning nut is installed at the bottom of the positioning bolt (27).

10. The metering verification device for a fuel dispenser according to any one of claims 1-9, characterized in that, Fixing plates (28) are installed on both sides of the outer wall of the protective box (1), and fixing holes are provided on the fixing plates (28).

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