Hydraulic pipeline connecting structure of oiling machine

Abstract

The utility model relates to the technical field of oiling machines, and particularly discloses an oiling machine hydraulic pipeline connecting structure which comprises a pipe connector assembly, a flowmeter, a filter and an oil inlet pipe, one end of the pipe connector assembly is connected with the flowmeter, the other end of the pipe connector assembly is connected with a conveying pipe, and a control valve is installed on the conveying pipe. When the filtering pipeline is connected with the oil inlet pipe, the distance adjusting assembly is firstly connected with the transverse pipe and the vertical pipe in the upper bent pipe and the lower bent pipe, then the bent pipe assembly is aligned with the filtering pipeline, and during the period, the bent pipe assembly is rotated to enable the bent pipe assembly and the oil inlet pipe to be located on the same vertical plane. The position between the bent pipe assembly and the filtering pipeline is fixed; the adjusting power mechanism is started to adjust the distance between the two adjusting plates, then the height and the length of the bent pipe assembly are adjusted, the lower bent pipe is made to be aligned with the oil inlet pipe, then the lower bent pipe and the oil inlet pipe are connected together through the bolt, and the time needed in the connecting process is short.

Description

Technical Field

[0001] The utility model belongs to the technical field of fuel dispensers, and particularly relates to a hydraulic pipeline connection structure of a fuel dispenser. Background Art

[0002] Fuel dispensers have developed along with the development of automobiles and road traffic. They are the sales terminals of the refined oil retail industry and are metering devices for sales settlement. The hydraulic system of a fuel dispenser is a key part responsible for transporting and metering oil products. The hydraulic system of a fuel dispenser mainly consists of components such as an oil pump, an oil-gas separator, a filter, a flowmeter, a solenoid valve, and a self-sealing oil gun. The oil pump rotates at high speed under the action of power, sucks in and discharges the oil fluid from the storage tank, and sends it to the oil-gas separator through the oil pipeline for oil-gas separation treatment.

[0003] The filter in the fuel dispenser is usually installed at the filter pipeline. The filter pipeline and the oil inlet pipe connecting to the oil tank adopt hard pipes. When connecting the filter pipeline and the oil inlet pipe, a pipeline connection mechanism is needed to connect the two. When connecting the two, the pipeline interfaces of the two are usually not aligned in the up-down and left-right directions. Therefore, a pipeline cutting mechanism is needed to cut the pipeline into an appropriate length before splicing. During splicing, the situation of cutting the pipeline multiple times often occurs due to inaccurate cutting and incorrect distance measurement, resulting in a large amount of time consumption when connecting the filter pipeline and the oil inlet pipe. Therefore, this application proposes a hydraulic pipeline connection structure for a fuel dispenser. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hydraulic pipeline connection structure for a fuel dispenser to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution. A hydraulic pipeline connection structure for a fuel dispenser includes a pipe joint assembly, a flowmeter, a filter, and an oil inlet pipe. One end of the pipe joint assembly is connected to the flowmeter, and the other end is connected to a delivery pipe. A control valve is installed at the delivery pipe, and multiple delivery pipes are connected to a filter pipeline through a tee pipe. A filter is installed at the filter pipeline. The filter pipeline is connected to a bent pipe assembly through a joint, and the filter pipeline is connected to the oil inlet pipe through the bent pipe assembly.

[0006] There are two bent pipe assemblies, namely an upper bent pipe and a lower bent pipe, which are connected by a chuck lock.

[0007] The bent pipe assembly includes a horizontal pipe and a vertical pipe, and a distance adjustment component is installed in both the horizontal pipe and the vertical pipe.

[0008] The distance adjustment component includes an adjustment box body, an adjustment pipeline, and an adjustment plate. The adjustment pipeline is connected to one of the horizontal pipe and the vertical pipe in the bent pipe assembly.

[0009] One side of the adjusting plate that fits against the inner wall of the cavity of the adjusting box body is provided with an inner gasket, and one side of the adjusting box body that fits against the straight pipe of the adjusting pipeline is provided with an outer gasket. The adjusting box body, the adjusting plate, the inner gasket, the outer gasket, and the straight pipe enclose a leak-proof cavity;

[0010] The two adjusting plates are connected to an adjusting power mechanism, and the adjusting power mechanism is used to adjust the depth of the adjusting plate inserted into the adjusting box body.

[0011] Preferably, the adjusting pipeline includes a bellmouth pipe and a straight pipe. The straight pipe is communicated with the bellmouth pipe, and the bellmouth pipe is located in the cavity of the adjusting box body. An installation groove is arranged on the outer wall of the bellmouth pipe, and a bellmouth gasket is clamped in the installation groove. The bellmouth gasket abuts against the outer wall of the sealing frame.

[0012] Preferably, the adjusting plate is received into the sealing frame, and the adjusting plate cooperates with the inner wall of the cavity in the adjusting box body.

[0013] Preferably, the adjusting power mechanism has the function of making the two adjusting plates approach or move away from each other.

[0014] Preferably, the adjusting power mechanism includes a rotating plate. The rotating plate is connected to the adjusting plate through a connecting plate. The cross-section of the cavity in the adjusting box body is set to be hexagonal, and the rotating plate is connected to a power shaft.

[0015] Preferably, the power shaft includes a central circular shaft and straight plates on the outer wall of the circular shaft. The power shaft is inserted into a rotating block in the adjusting box body. The rotating block is connected to the adjusting box body through a bearing. The power shaft is inserted into a power component, and the power component and the power shaft can only move relative to each other along the axial direction of the power shaft.

[0016] Preferably, a threaded portion is arranged at the power component. The threaded portion is threadedly connected to an adjusting seat. The adjusting seat is installed on the adjusting box body through bolts. A handle is arranged on the side of the power component away from the adjusting box body. The diameter of the handle is smaller than the diameter of the threaded portion.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] 1. When the filter pipe in the present utility model is connected to the fuel inlet pipe, first connect the distance adjustment component to the horizontal pipe and vertical pipe in the upper elbow pipe and lower elbow pipe. Then, assemble the two elbow pipe components, namely the upper elbow pipe and the lower elbow pipe, together through a chuck lock. Next, align the elbow pipe component with the filter pipe. During this process, rotate the elbow pipe component to make the elbow pipe component and the fuel inlet pipe in a vertical plane. After fixing the position between the elbow pipe component and the filter pipe, start the adjustment power mechanism to adjust the distance between the two adjustment plates, thereby adjusting the height and length of the elbow pipe component to align the lower elbow pipe with the fuel inlet pipe. Then, connect the lower elbow pipe and the fuel inlet pipe together with bolts. During the connection process, there is no need to cut the pipe, and the entire installation process has a low difficulty and requires less time.

[0019] 2. In the present utility model, after the oil enters the inside of the adjustment box body and is located between the upper and lower adjustment plates, corresponding inner gaskets are provided at both the upper and lower adjustment plates, which play a role of sealing and isolation, providing the first layer of sealing protection for the transported oil. However, there are some volatile gases doped in the oil, and these gases are likely to pass through the inner gasket and enter the leak-proof cavity. The leak-proof cavity is formed by an outer gasket, an adjustment box body, an adjustment plate, an inner gasket, an outer gasket, and a straight pipe. The leak-proof cavity provides the second layer of sealing protection for the transported oil. The two-layer protection inside and outside can prevent the leakage of oil and volatile gases.

[0020] 3. In the present utility model, the two elbow pipe components can be assembled in advance. The parts that need to be connected in the hydraulic pipeline area of the fuel dispenser are only the connection points between the upper elbow pipe and the filter pipe, and the connection points between the fuel inlet pipe and the lower elbow pipe. Moreover, during the installation process, the length and height of the elbow pipe component can be adjusted, and there is no need to repeatedly disassemble the elbow pipe component. And after the length and height of the elbow pipe component are adjusted during the installation process, they are in a fixed state, and the elbow pipe component will not shake during installation, so the installation difficulty is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the hydraulic pipeline connection structure of the fuel dispenser in the present utility model.

[0022] Figure 2 It is the first schematic structural diagram of the distance adjustment component in the present utility model.

[0023] Figure 3 It is the second schematic structural diagram of the distance adjustment component in the present utility model.

[0024] Figure 4 It is the first exploded view of the distance adjustment component in the present utility model.

[0025] Figure 5 It is the second exploded view of the distance adjustment component in the present utility model.

[0026] In the figure: 1, pipe joint assembly; 2, flow meter; 3, delivery pipe; 4, control valve; 5, tee; 6, filter;

[0027] 7, distance adjustment assembly; 701, adjustment box body; 702, adjustment pipe; 703, horn pipe; 704, horn gasket; 705, adjustment plate; 706, sealing frame; 707, inner gasket; 708, outer gasket; 709, leak-proof cavity; 710, rotating plate; 711, connecting plate; 712, power component; 713, adjustment seat; 8, upper elbow; 9, chuck lock; 10, lower elbow; 11, fuel inlet pipe. Specific implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Refer to Figures 1-5 , a hydraulic pipeline connection structure of a fuel dispenser, including a pipe joint assembly 1, a flow meter 2, a filter 6, and a fuel inlet pipe 11. One end of the pipe joint assembly 1 is connected to the flow meter 2, and the other end is connected to the delivery pipe 3. The flow meter 2 has the function of measuring the oil output. When using the fuel dispenser to refuel, the measured data is used to calculate the refueling cost. A control valve 4 is installed at the delivery pipe 3, and multiple delivery pipes 3 are connected to the filter pipeline through a tee 5. A filter 6 is installed at the filter pipeline. The filter pipeline is connected to the elbow assembly through a joint, and the filter pipeline and the elbow assembly can rotate relative to each other (the connection end plate at the lower end of the filter pipeline can rotate relative to the filter pipeline, and when it is connected to the elbow assembly, its connection angle can be adjusted as needed to enable the elbow assembly to be in the same plane as the fuel inlet pipe 11. When connecting, an elastic gasket is installed between the connection end plate at the lower end of the filter pipeline and the connection end plate at the elbow assembly to increase the fastening force), and the filter pipeline is connected to the fuel inlet pipe 11 through the elbow assembly;

[0030] As Figure 1 shown, there are two elbow assemblies, namely an upper elbow 8 and a lower elbow 10, which are connected by a chuck lock 9.

[0031] Furthermore, the elbow assembly includes a horizontal pipe and a vertical pipe. Distance adjustment assemblies 7 are installed at both the horizontal pipe and the vertical pipe. The distance adjustment assembly 7 can adjust the overall length of the horizontal pipe and the vertical pipe, so that when the filter pipeline is connected to the fuel inlet pipe 11, it is more convenient to align the pipeline interfaces;

[0032] As Figures 2-5As shown, the distance adjustment assembly 7 includes an adjustment box body 701, an adjustment pipe 702, and two adjustment plates 705. The adjustment pipe 702 is bolted to the elbow assembly. The adjustment pipe 702 includes a bellmouth pipe 703 and a straight pipe. The straight pipe is in communication with the bellmouth pipe 703, and the bellmouth pipe 703 is located in the cavity inside the adjustment box body 701. An installation groove is provided on the outer wall of the bellmouth pipe 703, and a bellmouth gasket 704 is clamped in the installation groove. The bellmouth gasket 704 abuts against the outer wall of the sealing frame 706. The adjustment plate 705 is received into the sealing frame 706, and the adjustment plate 705 cooperates with the inner wall of the cavity in the adjustment box body 701. When the adjustment plate 705 moves up and down, it can drive the adjustment pipe 702 to move up and down, thereby adjusting the overall length of the vertical pipe.

[0033] Specifically, an inner gasket 707 is provided on the side of the adjustment plate 705 that fits against the inner wall of the cavity in the adjustment box body 701, and an outer gasket 708 is provided on the side of the adjustment box body 701 that fits against the straight pipe of the adjustment pipe 702. The adjustment box body 701, the adjustment plate 705, the inner gasket 707, the outer gasket 708, and the straight pipe enclose a leak-proof cavity 709. Refer to Figure 2 , after the oil enters the inside of the adjustment box body 701, it is located between the upper and lower adjustment plates 705. Corresponding inner gaskets 707 are provided at both the upper and lower adjustment plates 705, which play a role of sealing and isolation, providing the first layer of sealing protection for the transported oil. However, there are some volatile gases doped in the oil, and the gases are likely to pass through the inner gasket 707 and enter the inside of the leak-proof cavity 709. The leak-proof cavity 709 is formed by enclosing the outer gasket 708, the adjustment box body 701, the adjustment plate 705, the inner gasket 707, the outer gasket 708, and the straight pipe. The leak-proof cavity 709 provides the second layer of sealing protection for the transported oil. The inner and outer two-layer protection can prevent the leakage of oil and volatile gases;

[0034] Furthermore, the two adjustment plates 705 are connected to an adjustment power mechanism, and the adjustment power mechanism is used to adjust the depth of insertion of the adjustment plates 705 into the adjustment box body 701. Specifically, the adjustment power mechanism has the function of making the two adjustment plates 705 approach or move away from each other.

[0035] Specifically, the adjustment power mechanism includes a rotating plate 710. The rotating plate 710 is connected to an adjusting plate 705 through a connecting plate 711. The cross-section of the cavity in the adjusting box body 701 is set to a hexagonal shape, and the matching adjusting plate 705 can only slide along the inner wall of the cavity. The rotating plate 710 is connected to a power shaft. The power shaft includes a central circular shaft and a straight plate on the outer wall of the circular shaft. The power shaft is inserted into a rotating block in the adjusting box body 701. The rotating block is connected to the adjusting box body 701 through a bearing. The power shaft is inserted into a power member 712. The power member 712 can only move relative to the power shaft along the axial direction of the power shaft. A threaded portion is provided at the power member 712. The threaded portion is threadedly connected to an adjusting seat 713. The adjusting seat 713 is installed on the adjusting box body 701 through a bolt. A handle is provided on the side of the power member 712 away from the adjusting box body 701. The diameter at the handle is smaller than the diameter at the threaded portion.

[0036] By rotating the power member 712 forward and backward, the rotating plate 710 can be driven to rotate forward and backward through the power shaft. When the rotating plate 710 rotates, the two adjusting plates 705 are pulled to approach or move away from each other through the two connecting plates 711. During the rotation of the power member 712, it is in threaded cooperation with the thread in the adjusting seat 713 (at this time, the power member 712 can move relative to the power shaft), and its position is locked through the thread; after the position of the adjusting plate 705 is adjusted, the length or height of the entire elbow assembly is adjusted to align the elbow assembly with the oil inlet pipe 11.

[0037] Working principle:

[0038] When the filter pipe is connected to the oil inlet pipe 11, first connect the distance adjustment assembly 7 to the horizontal pipe and vertical pipe in the upper elbow 8 and the lower elbow 10. Then, assemble the two elbow assemblies of the upper elbow 8 and the lower elbow 10 together through a chuck lock 9. Then, align the elbow assembly with the filter pipe. During this period, rotate the elbow assembly so that the elbow assembly and the oil inlet pipe 11 are in a vertical plane (at this time, there are deviations between the horizontal and vertical directions of the elbow assembly and the oil inlet pipe 11);

[0039] Then start the adjustment power mechanism to adjust the distance between the two adjusting plates 705, thereby adjusting the height and length of the elbow assembly. Two elbow assemblies, namely the upper elbow 8 and the lower elbow 10, are adopted. The distance adjustment assembly 7 is provided in the vertical pipes of both elbow assemblies, and the adjustment range in the vertical direction is larger, and the applicable scenarios are also correspondingly expanded. Finally, adjust to the position where the lower elbow 10 is aligned with the oil inlet pipe 11, and then connect the lower elbow 10 to the oil inlet pipe 11 through bolts;

[0040] During the installation process, the two elbow pipe assemblies can be assembled in other open areas. Only the connection points between the upper elbow pipe 8 and the filter pipe, and between the fuel inlet pipe 11 and the lower elbow pipe 10 need to be connected in the fuel dispenser hydraulic pipeline area. The installation time required in the relatively narrow fuel dispenser hydraulic pipeline area is shorter. Moreover, during the installation process, there is no need to repeatedly disassemble the elbow pipe assemblies. After the length and height of the elbow pipe assemblies are adjusted during the installation process, they are in a fixed state and will not loosen. Therefore, the elbow pipe assemblies will not shake during installation, and the installation difficulty is lower.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic pipeline connection structure for a fuel dispenser, comprising a pipe joint assembly (1), a flowmeter (2), a filter (6), and an inlet pipe (11). One end of the pipe joint assembly (1) is connected to the flowmeter (2), and the other end is connected to a delivery pipe (3). A control valve (4) is installed at the delivery pipe (3), and multiple delivery pipes (3) are connected through a tee pipe (5) to a filter pipeline. A filter (6) is installed at the filter pipeline. It is characterized in that, The filter pipeline is connected to the elbow assembly through a joint, and the filter pipeline is communicated with the oil inlet pipe (11) through the elbow assembly; There are two elbow assemblies, namely the upper elbow (8) and the lower elbow (10), and the upper elbow (8) and the lower elbow (10) are connected through a chuck lock (9); The elbow assembly includes a horizontal pipe and a vertical pipe, and a distance adjustment assembly (7) is installed in both the horizontal pipe and the vertical pipe; The distance adjustment assembly (7) includes an adjustment box body (701), an adjustment pipeline (702), and an adjustment plate (705). The adjustment pipeline (702) is connected to one of the horizontal pipe and the vertical pipe in the elbow assembly; One side of the adjustment plate (705) that fits against the inner wall of the cavity in the adjustment box body (701) is provided with an inner gasket (707). One side of the adjustment box body (701) that fits against the straight pipe in the adjustment pipeline (702) is provided with an outer gasket (708). The adjustment box body (701), the adjustment plate (705), the inner gasket (707), the outer gasket (708), and the straight pipe enclose a leak-proof cavity (709); The two adjustment plates (705) are connected to an adjustment power mechanism, and the adjustment power mechanism is used to adjust the depth of the adjustment plate (705) inserted into the adjustment box body (701).

2. The hydraulic pipeline connection structure of a fuel dispenser according to claim 1, wherein, The adjustment pipeline (702) includes a bellmouth pipe (703) and a straight pipe. The straight pipe is communicated with the bellmouth pipe (703), and the bellmouth pipe (703) is located in the cavity inside the adjustment box body (701). An installation groove is provided on the outer wall of the bellmouth pipe (703), and a bellmouth gasket (704) is clamped in the installation groove. The bellmouth gasket (704) abuts against the outer wall of the sealing frame (706).

3. A hydraulic pipeline connection structure of a fuel dispenser according to claim 2, characterized in that, The adjustment plate (705) is received into the sealing frame (706), and the adjustment plate (705) cooperates with the inner wall of the cavity in the adjustment box body (701).

4. A hydraulic pipeline connection structure of a fuel dispenser according to claim 1, characterized in that, The adjustment power mechanism has the function of making the two adjustment plates (705) approach or move away from each other.

5. A hydraulic pipeline connection structure of a fuel dispenser according to claim 1, characterized in that, The adjustment power mechanism includes a rotating plate (710). The rotating plate (710) is connected to the adjustment plate (705) through a connecting plate (711). The cross-section of the cavity in the adjustment box body (701) is set in a hexagonal shape, and the rotating plate (710) is connected to a power shaft.

6. The hydraulic pipeline connection structure of a fuel dispenser according to claim 5, characterized in that, The power shaft includes a central circular shaft and straight plates on the outer wall of the circular shaft. The power shaft is inserted into a rotating block in the adjustment box body (701). The rotating block is connected to the adjustment box body (701) through a bearing. The power shaft is inserted into a power member (712), and the power member (712) and the power shaft can only move relative to each other along the axial direction of the power shaft.

7. The hydraulic pipeline connection structure of a fuel dispenser according to claim 6, characterized in that, A threaded portion is provided at the power member (712). The threaded portion is threadedly connected to an adjustment seat (713). The adjustment seat (713) is installed on the adjustment box body (701) through bolts. A handle is provided on the side of the power member (712) away from the adjustment box body (701), and the diameter at the handle is smaller than the diameter at the threaded portion.

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