Automatic oiling device with reversing function

Abstract

The utility model discloses an automatic refueling device with a reversing function, which relates to the technical field of diesel generators and comprises an external oil storage tank, a generator fuel tank and a control box. A suction pipe is fixedly mounted at the oil inlet end of the oil pump, and a discharge pipe is fixedly mounted at the oil outlet end of the oil pump; the first three-way valve is fixedly installed at the bottom of the suction pipe, a first oil suction pipe connected with an external oil storage tank is fixedly installed at one end of the first three-way valve, and a second oil suction pipe connected with a fuel tank of the generator is fixedly installed at the other end of the first three-way valve. According to the utility model, the automatic refueling effect of the fuel tank of the generator is conveniently realized, and the effect of conveniently discharging oil during maintenance is also conveniently realized, so that the whole automatic refueling device has an immediate reversal function, and the trouble and the operation intensity of the oil discharging operation are not increased.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel generators, in particular to an automatic refueling device with a reversing function. Background Art

[0002] A diesel generator is a small power generation equipment, which refers to a power machine that uses diesel as fuel and a diesel engine as the prime mover to drive the generator to generate electricity. The whole set is generally composed of a diesel engine, a generator, a control box, a fuel tank, a storage battery for starting and control, a protective device, an emergency cabinet and other components. In order to ensure the continuous and uninterrupted operation of the generator set, a stable and reliable supply of fuel is required, but the existing diesel generator fuel tank structure design on the market is not reasonable enough. When draining the oil for maintenance, it is necessary to set up an oil pipe and oil pump to achieve this, which is not convenient enough.

[0003] After searching, the patent publication number CN213326710U discloses an automatic refueling device with a reversing function, including: a fuel tank, in which an oil level sensor is arranged; an oil pump with a reversing function, the forward oil inlet of the oil pump is connected to an external oil storage tank through a first oil pipe, and the oil outlet is connected to the fuel tank through a second oil pipe, and one end of the second oil pipe extends into the fuel tank; an oil pump control box, on which a reversing start-stop button is arranged, the oil pump control box is connected to the oil level sensor through a feedback signal line, and is connected to the oil pump through a control signal line; when the generator set is generating electricity, the oil level in the fuel tank is detected by the oil level sensor to control whether the oil pump needs to supply oil in the forward direction, and when the fuel tank needs to drain oil, the reversing start-stop button is activated to make the oil pump reverse and pump oil back into the external oil storage tank.

[0004] In combination with the above patents, it is found that the prior art has the following shortcomings: the prior art uses a forward and reverse oil pump to perform automated operations of refueling and draining oil. Although it can realize the function of convenient oil drainage during maintenance, the forward and reverse process of the oil pump is difficult to achieve, and it cannot be reversed immediately. It is necessary to change the direction of the parts inside the oil pump before reversing. Such an operation process will undoubtedly increase the trouble and operation intensity of the operation, and will also cause mechanical wear of the internal parts of the oil pump. Therefore, it is urgent to design an automatic refueling device with a reversing function. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and propose an automatic oiling device with a reversing function. Its advantage is that it is convenient to achieve the effect of convenient oil discharge during maintenance, so that the entire automatic oiling device has a reversing function and can be reversed immediately, without adding trouble and operation intensity to the oil discharge operation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An automatic refueling device with a reversing function, comprising an external oil storage tank, a generator fuel tank and a control box;

[0008] An oil pump, wherein a suction pipe is fixedly installed at the oil inlet end of the oil pump, and a discharge pipe is fixedly installed at the oil outlet end of the oil pump;

[0009] A first three-way valve, the first three-way valve is fixedly installed at the bottom of the suction pipe, one end of the first three-way valve is fixedly installed with a first oil extraction pipe connected to the external oil storage tank, and the other end of the first three-way valve is fixedly installed with a second oil extraction pipe connected to the generator fuel tank;

[0010] A second three-way valve, the second three-way valve is fixedly installed on the top of the discharge pipe, one end of the second three-way valve is fixedly installed with a second oil discharge pipe connected to the external oil storage tank, and the other end of the second three-way valve is fixedly installed with a first oil discharge pipe connected to the generator fuel tank;

[0011] A driving wheel is fixedly mounted on the valve stem of the first three-way valve and the valve stem of the second three-way valve, and a driving belt is connected between the two driving wheels. A mounting frame is fixedly mounted on the bottom of the oil pump, and a motor for driving the driving belt and the driving wheel to rotate is fixedly mounted on one side of the mounting frame.

[0012] Through the above technical solution: the fuel in the generator fuel tank is pumped back into the external oil storage tank, which is convenient for draining the oil during maintenance, and the entire automatic refueling device has a reversing function.

[0013] The utility model is further configured such that a second liquid level sensor is fixedly installed on the inner wall of the generator fuel tank on one side away from the bottom, and the second liquid level sensor is electrically connected to the control box, the control box is electrically connected to the oil pump, and the control box is provided with a first on / off switch for controlling the operation of the oil pump.

[0014] Through the above technical solution: the oil amount in the fuel tank of the generator is detected, which facilitates the control of the oil pump and implements automatic refueling operations.

[0015] The utility model is further configured such that the control box is electrically connected to the motor, and a second on / off switch for controlling the operation of the motor is arranged on the control box.

[0016] Through the above technical solution: it is easy to control the motor to start and shut down.

[0017] The utility model is further configured such that a first liquid level sensor is fixedly mounted on an inner wall of one side of the external oil storage tank close to the bottom, and an alarm is fixedly mounted on an outer wall of one side of the external oil storage tank, and the alarm, the first liquid level sensor and the control box are electrically connected.

[0018] Through the above technical solution: the oil amount in the external oil storage tank is detected, so as to remind people to add oil in time.

[0019] The utility model is further configured that the control box is provided with a display device for displaying the remaining fuel in the external fuel storage tank and the generator fuel tank.

[0020] Through the above technical solution: it is convenient to display the oil amount in the external oil storage tank and the generator fuel tank.

[0021] The utility model is further configured such that one end of the first oil suction pipe extends to the inner bottom of the external oil storage tank, one end of the second oil suction pipe extends to the inner bottom of the generator fuel tank, one end of the first oil discharge pipe extends to the inner top of the generator fuel tank, and one end of the second oil discharge pipe extends to the inner top of the external oil storage tank.

[0022] Through the above technical solution: sufficient oil pumping operation can be achieved.

[0023] The utility model is further configured such that a refueling pipe is fixed to the top of the external oil storage tank and the top of the generator fuel tank, and a sealing cap is arranged on the refueling pipe.

[0024] Through the above technical solution: refueling operations can be carried out on the inside of the external oil storage tank and the generator fuel tank.

[0025] The utility model is further configured that the first oil extraction pipe, the second oil extraction pipe, the first oil discharge pipe and the second oil discharge pipe are all provided with a one-way valve.

[0026] Through the above technical solution: the flow direction of the fuel in the oil pipe is controlled to avoid backflow.

[0027] The beneficial effects of the utility model are:

[0028] The utility model, through the cooperation of the second liquid level sensor, the control box, the oil pump, the first oil extraction pipe, the first three-way valve, the suction pipe, the discharge pipe, the first oil discharge pipe and the external oil storage tank, detects the oil amount in the generator fuel tank through the second liquid level sensor. When the oil amount is too low, the oil pump is controlled to operate so that the first oil extraction pipe, the suction pipe, the discharge pipe and the first oil discharge pipe form an oil circuit, thereby automatically supplying oil according to the oil amount in the generator fuel tank, thereby realizing the automatic refueling effect of the generator fuel tank.

[0029] The utility model adopts the cooperation of the control box, the oil pump, the first three-way valve, the second oil extraction pipe, the suction pipe, the discharge pipe, the second three-way valve, the second oil discharge pipe, the motor, the transmission belt and the transmission wheel. When it is necessary to discharge the fuel in the fuel tank of the generator, the motor is used to drive the transmission belt and the transmission wheel to rotate, drive the valve stems of the first three-way valve and the second three-way valve to rotate, change the direction of the first three-way valve and the second three-way valve, so that the second oil extraction pipe, the suction pipe, the discharge pipe and the second oil discharge pipe form an oil circuit, which is convenient for achieving the effect of convenient oil discharge during maintenance, and makes the entire automatic refueling device have a reversing function and can be reversed immediately, instead of the prior art using forward and reverse oil pumps to work, the reversing speed is fast, and will not add trouble and operation intensity to the oil discharge operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a front view of an automatic refueling device with a reversing function proposed by the utility model;

[0031] Figure 2 This is a fuel flow diagram of an automatic refueling device with a reversing function proposed by the utility model;

[0032] Figure 3 This is a schematic diagram of the structure of a suction pipe and a discharge pipe of an automatic refueling device with a reversing function proposed by the utility model;

[0033] Figure 4 This is a schematic diagram of the transmission belt and transmission wheel structure of an automatic refueling device with a reversing function proposed by the utility model;

[0034] Figure 5 The utility model discloses a one-way valve structure schematic diagram of an automatic refueling device with a reversing function.

[0035] In the figure: 1. external oil storage tank; 2. first oil extraction pipe; 3. oil pump; 4. motor; 5. second oil extraction pipe; 6. first three-way valve; 7. generator fuel tank; 8. second liquid level sensor; 9. refueling pipe; 10. first oil discharge pipe; 11. second three-way valve; 12. control box; 13. second oil discharge pipe; 14. alarm; 15. first liquid level sensor; 16. mounting frame; 17. suction pipe; 18. transmission belt; 19. discharge pipe; 20. transmission wheel; 21. one-way valve. DETAILED DESCRIPTION

[0036] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0040] Reference Figure 1-Figure 4 , an automatic refueling device with a reversing function, comprising an external oil storage tank 1, a generator fuel tank 7 and a control box 12;

[0041] An oil pump 3, a suction pipe 17 is fixedly installed at the oil inlet end of the oil pump 3, and a discharge pipe 19 is fixedly installed at the oil outlet end of the oil pump 3;

[0042] A first three-way valve 6, the first three-way valve 6 is fixedly installed at the bottom of the suction pipe 17, one end of the first three-way valve 6 is fixedly installed with a first oil extraction pipe 2 connected to the external oil storage tank 1, and the other end of the first three-way valve 6 is fixedly installed with a second oil extraction pipe 5 connected to the generator fuel tank 7;

[0043] A second three-way valve 11, the second three-way valve 11 is fixedly installed on the top of the discharge pipe 19, one end of the second three-way valve 11 is fixedly installed with a second oil discharge pipe 13 connected to the external oil storage tank 1, and the other end of the second three-way valve 11 is fixedly installed with a first oil discharge pipe 10 connected to the generator fuel tank 7;

[0044] A transmission wheel 20 is fixedly mounted on the valve stem of the first three-way valve 6 and the valve stem of the second three-way valve 11, and a transmission belt 18 is transmission-connected between the two transmission wheels 20. A mounting frame 16 is fixedly mounted on the bottom of the oil pump 3, and a motor 4 for driving the transmission belt 18 and the transmission wheel 20 to rotate is fixedly mounted on one side of the mounting frame 16. The motor 4 drives the transmission belt 18 and the transmission wheel 20 to rotate, and drives the valve stems of the first three-way valve 6 and the second three-way valve 11 to rotate, thereby changing the direction of the first three-way valve 6 and the second three-way valve 11, so that the second oil extraction pipe 5, the suction pipe 17, the discharge pipe 19, and the second oil discharge pipe 13 form an oil circuit, thereby pumping the fuel in the generator fuel tank 7 back into the external oil storage tank 1, so as to facilitate the effect of convenient oil discharge during maintenance, so that the entire automatic refueling device has a reversing function.

[0045] To form automated performance, refer to Figure 1 A second liquid level sensor 8 is fixedly installed on the inner wall of the generator fuel tank 7 away from the bottom, and the second liquid level sensor 8 is electrically connected to the control box 12, the control box 12 is electrically connected to the oil pump 3, and a first on-off switch for controlling the operation of the oil pump 3 is provided on the control box 12, the control box 12 is electrically connected to the motor 4, and a second on-off switch for controlling the operation of the motor 4 is provided on the control box 12, a first liquid level sensor 15 is fixedly installed on the inner wall of the external oil storage tank 1 close to the bottom, and an alarm 14 is fixedly installed on the outer wall of one side of the external oil storage tank 1, the alarm 14, the first liquid level sensor 15 and the control box 12 are electrically connected, and a display device for displaying the remaining fuel in the external oil storage tank 1 and the generator fuel tank 7 is provided on the control box 12, the oil amount in the generator fuel tank 7 is detected by the second liquid level sensor 8, so as to control the operation of the oil pump 3 and implement automatic refueling operation, the oil amount in the external oil storage tank 1 is detected by the first liquid level sensor 15, and when the oil amount is too low, the alarm 14 is activated to remind people to add oil in time.

[0046] In order to fully pump out oil, refer to Figure 1 One end of the first oil extraction pipe 2 extends to the inner bottom of the external oil storage tank 1, one end of the second oil extraction pipe 5 extends to the inner bottom of the generator fuel tank 7, one end of the first oil discharge pipe 10 extends to the inner top of the generator fuel tank 7, and one end of the second oil discharge pipe 13 extends to the inner top of the external oil storage tank 1. The top of the external oil storage tank 1 and the top of the generator fuel tank 7 are both fixed with refueling pipes 9, and sealing caps are provided on the refueling pipes 9. By connecting the first oil extraction pipe 2 to the inner bottom of the external oil storage tank 1, and also connecting the second oil extraction pipe 5 to the inner bottom of the generator fuel tank 7, sufficient oil extraction operation can be achieved. Embodiment 2

[0047] Compared with the first embodiment, this embodiment Figure 5The first oil extraction pipe 2, the second oil extraction pipe 5, the first oil discharge pipe 10 and the second oil discharge pipe 13 are all provided with a one-way valve 21, and the flow direction of the fuel in the oil pipe is controlled by the one-way valve 21 to avoid backflow.

[0048] Working principle: During operation, the oil level in the generator fuel tank 7 is detected by the second liquid level sensor 8. When the oil level is too low, the control box 12 controls the oil pump 3 to work, so that the first oil extraction pipe 2, the suction pipe 17, the discharge pipe 19, and the first oil discharge pipe 10 form an oil circuit, thereby automatically supplying oil according to the oil level in the generator fuel tank 7. When the oil level reaches the detection area of ​​the second liquid level sensor 8, refueling is automatically stopped, and the oil level in the external oil storage tank 1 is detected by the first liquid level sensor 15. When the oil level is too low, the alarm 14 is activated to remind people to go out in time. The fuel in the generator fuel tank 7 is refilled with fuel. When the fuel in the generator fuel tank 7 needs to be discharged, the motor 4 is used to drive the transmission belt 18 and the transmission wheel 20 to rotate, and the valve stems of the first three-way valve 6 and the second three-way valve 11 are driven to rotate, and the direction of the first three-way valve 6 and the second three-way valve 11 is changed, so that the second oil extraction pipe 5, the suction pipe 17, the discharge pipe 19, and the second oil discharge pipe 13 form an oil circuit, thereby pumping the fuel in the generator fuel tank 7 back to the external fuel storage tank 1, so as to facilitate the effect of convenient oil discharge during maintenance, and make the entire automatic refueling device have a reversing function.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic refueling device with a reversing function, characterized in that: It includes an external oil storage tank (1), a generator fuel tank (7) and a control box (12); An oil pump (3), wherein a suction pipe (17) is fixedly mounted on an oil inlet end of the oil pump (3), and a discharge pipe (19) is fixedly mounted on an oil outlet end of the oil pump (3); a first three-way valve (6), the first three-way valve (6) being fixedly mounted at the bottom of the suction pipe (17), one end of the first three-way valve (6) being fixedly mounted with a first oil extraction pipe (2) connected to the external oil storage tank (1), and the other end of the first three-way valve (6) being fixedly mounted with a second oil extraction pipe (5) connected to the generator fuel tank (7); a second three-way valve (11), the second three-way valve (11) being fixedly mounted on the top of the discharge pipe (19), one end of the second three-way valve (11) being fixedly mounted with a second oil discharge pipe (13) connected to the external oil storage tank (1), and the other end of the second three-way valve (11) being fixedly mounted with a first oil discharge pipe (10) connected to the generator fuel tank (7); A transmission wheel (20) is fixedly mounted on the valve stem of the first three-way valve (6) and the valve stem of the second three-way valve (11), and a transmission belt (18) is transmission-connected between the two transmission wheels (20). A mounting frame (16) is fixedly mounted on the bottom of the oil pump (3), and a motor (4) for driving the transmission belt (18) and the transmission wheel (20) to rotate is fixedly mounted on one side of the mounting frame (16).

2. The automatic refueling device with reversing function according to claim 1, characterized in that: A second liquid level sensor (8) is fixedly mounted on the inner wall of the generator fuel tank (7) on a side away from the bottom, and the second liquid level sensor (8) is electrically connected to a control box (12), the control box (12) is electrically connected to the oil pump (3), and the control box (12) is provided with a first on / off switch for controlling the operation of the oil pump (3).

3. The automatic refueling device with reversing function according to claim 2, characterized in that: The control box (12) is electrically connected to the motor (4), and a second on / off switch for controlling the operation of the motor (4) is provided on the control box (12).

4. The automatic refueling device with reversing function according to claim 3 is characterized in that: A first liquid level sensor (15) is fixedly mounted on an inner wall of one side of the external oil storage tank (1) close to the bottom, and an alarm (14) is fixedly mounted on an outer wall of one side of the external oil storage tank (1); the alarm (14), the first liquid level sensor (15) and the control box (12) are electrically connected.

5. The automatic refueling device with reversing function according to claim 4, characterized in that: The control box (12) is provided with a display device for displaying the remaining fuel in the external fuel storage tank (1) and the generator fuel tank (7).

6. The automatic refueling device with reversing function according to claim 1, characterized in that: One end of the first oil extraction pipe (2) extends to the inner bottom of the external oil storage tank (1), one end of the second oil extraction pipe (5) extends to the inner bottom of the generator fuel tank (7), one end of the first oil discharge pipe (10) extends to the inner top of the generator fuel tank (7), and one end of the second oil discharge pipe (13) extends to the inner top of the external oil storage tank (1).

7. The automatic refueling device with reversing function according to claim 1, characterized in that: A refueling pipe (9) is fixed to the top of the external oil storage tank (1) and the top of the generator fuel tank (7), and a sealing cap is provided on the refueling pipe (9).

8. The automatic refueling device with reversing function according to claim 1, characterized in that: The first oil extraction pipe (2), the second oil extraction pipe (5), the first oil discharge pipe (10) and the second oil discharge pipe (13) are all provided with a one-way valve (21).

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