Oil way cut-off equipment for oiling machine

Abstract

The utility model relates to the technical field of oiling machine accessories, in particular to oil way cutting-off equipment for an oiling machine. According to the oil way cutting-off equipment for the oiling machine, the technical problem that an oil pipe cutting-off device of a gas station in the prior art is low in safety is solved. An oil way cut-off device for an oiling machine comprises an electromagnetic valve assembly connected to an oil pipe in series and a control assembly controlling the electromagnetic valve assembly to work. The cut-off valve and the anti-explosion valve are connected to the oil pipe in series and controlled by the control assembly, when the oil pipe needs to be cut off, the control assembly sends out a control signal, the cut-off valve and the anti-explosion valve cut off the oil pipe at the same time, even if one of the cut-off valve and the anti-explosion valve fails, the oil pipe can be effectively cut off, and the oil injection event is prevented; and the safety performance of the oil path cutting equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel dispenser accessories, in particular to an oil circuit cutting device used for a fuel dispenser. Background Art

[0002] In the petrochemical industry, there are a large number of flammable and explosive gases and liquids. Therefore, solenoid valves with high precision and stability are needed to control the flow of fluid media to ensure the safety of equipment and personnel.

[0003] However, petrochemical gas stations in the prior art usually use a shut-off valve to cut off the oil pipe. Although the shut-off valve can meet the demand for cutting off the oil pipe, in actual application, the shut-off valve may fail or operate incorrectly, causing oil spray from the oil pipe, posing a safety hazard.

[0004] Therefore, the oil pipe cutting device of the gas station in the prior art has the technical problem of low safety. Utility Model Content

[0005] The utility model provides an oil line cutting device for a gas station, which solves the technical problem of low safety of the oil pipe cutting device of a gas station in the prior art.

[0006] Some implementation plans adopted to solve the above technical problems include:

[0007] An oil circuit cut-off device for a fuel dispenser, comprising a solenoid valve assembly connected in series to an oil pipe and a control assembly for controlling the operation of the solenoid valve assembly;

[0008] The solenoid valve assembly comprises a cut-off valve and an explosion-proof valve connected in series with the cut-off valve, wherein the cut-off valve and the explosion-proof valve are connected in series via a connector;

[0009] The explosion-proof valve includes an actuator for cutting off the oil pipe and a receiver for receiving a signal from the control component and controlling the operation of the actuator. The receiver is installed on the actuator and is electrically connected to the control component via a cable.

[0010] Preferably, the connector includes an operating portion and a connecting portion provided on the operating portion, and the connecting portion includes a first connecting portion assembled with the explosion-proof valve and a second connecting portion assembled with the cut-off valve.

[0011] Preferably, the cross-sectional shape of the operating portion is a polygon, the first connecting portion and the operating portion are an integrated structure, and the second connecting portion and the operating portion are an integrated structure.

[0012] Preferably, both the first connection portion and the second connection portion are provided with threads, and a major diameter of the threads provided on the first connection portion is not equal to a major diameter of the threads provided on the second connection portion.

[0013] Preferably, the receiver comprises a shell, the shell is provided with a wire outlet hole for leading out the cable, and a sealing layer is provided between the cable and the wire outlet hole.

[0014] Preferably, the shell is provided with a cable connecting pipe, the cable connecting pipe is communicated with the wire outlet hole, and the cable connecting pipe and the shell are an integrated structure.

[0015] Preferably, the cable connecting tube is filled with a resin layer for fixing the cable, and the cable connecting tube includes a tube body and a conical tube for fixing the tube body to the shell, wherein the diameter of one end of the conical tube connected to the tube body is smaller than the diameter of one end of the conical tube connected to the shell, and the tube body, the conical tube and the shell are an integrated structure.

[0016] Preferably, a water removal filter element for removing moisture from the medium flowing through the pipeline is also provided in the connector.

[0017] Preferably, the dewatering filter element is installed in the connector by means of threads, the connector is provided with internal threads, the dewatering filter element is provided with external threads, and one end of the dewatering filter element is provided with an operating groove for facilitating the rotation of the dewatering filter element.

[0018] Preferably, the cut-off valve and the explosion-proof valve are both coated with a corrosion-resistant layer.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] 1. By connecting the cut-off valve and the explosion-proof valve in series to the oil pipe, and the cut-off valve and the explosion-proof valve are controlled by the control component, when the oil pipe needs to be cut off, the control component sends a control signal, and the cut-off valve and the explosion-proof valve cut off the oil pipe at the same time. Even if one of the cut-off valve or the explosion-proof valve fails, the oil pipe can be effectively cut off to prevent the occurrence of oil injection events, thereby improving the safety performance of the oil circuit cutting equipment.

[0021] 2. By setting a connector, the connector can conveniently connect the explosion-proof valve and the cut-off valve, and the cut-off valve and the explosion-proof valve are easy to assemble and maintain.

[0022] 3. The receiver is electrically connected to the control component through a cable. The control component and the receiver have stable signal transmission capabilities and strong anti-interference capabilities, which further improves the safety performance of the oil circuit cutting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] For the purpose of explanation, several embodiments of the present utility model technology are described in the following drawings. The following drawings are incorporated into this text and constitute a part of the specific embodiment. In some cases, well-known structures and components are shown in block diagram form to avoid blurring the concept of the present utility model subject technology.

[0024] Figure 1 This is a schematic diagram of the utility model from a first angle.

[0025] Figure 2 It is a schematic diagram of the utility model from a second angle.

[0026] Figure 3 This is an exploded view of the utility model from the first angle.

[0027] Figure 4 This is an exploded view of the utility model from a second angle.

[0028] Figure 5 This is a schematic diagram of the connector from the first angle.

[0029] Figure 6 This is a schematic diagram of the connector from a second angle.

[0030] In the figure:

[0031] 1. Solenoid valve assembly.

[0032] 11. Shut-off valve.

[0033] 12. explosion-proof valve, 121. actuator, 122. receiver, 1211. cable connecting pipe, 1212. pipe body, 1213. conical pipe.

[0034] 2. Connector, 21. Operating portion, 22. First connecting portion, 23. Second connecting portion.

[0035] 3. Water removal filter element. DETAILED DESCRIPTION

[0036] The specific embodiments shown below are intended to be descriptions of various configurations of the subject technology of the present invention, and are not intended to represent the only configuration in which the subject technology of the present invention can be practiced. The specific embodiments include specific details intended to provide a thorough understanding of the subject technology of the present invention. However, it will be clear and obvious to those skilled in the art that the subject technology of the present invention is not limited to the specific details shown herein, and can be practiced without these specific details.

[0037] Reference Figures 1 to 6As shown, an oil circuit cut-off device for a fuel dispenser includes a solenoid valve assembly 1 connected in series to an oil pipe and a control assembly for controlling the operation of the solenoid valve assembly 1; that is, both the cut-off valve 11 and the explosion-proof valve 12 are solenoid valves, and both the cut-off valve 11 and the explosion-proof valve 12 are common valve body structures in the prior art.

[0038] The solenoid valve assembly 1 comprises a cut-off valve 11 and an explosion-proof valve 12 connected in series with the cut-off valve 11, wherein the cut-off valve 11 and the explosion-proof valve 12 are connected in series via a connector 2;

[0039] The explosion-proof valve 12 includes an actuator 121 for cutting off the oil pipe and a receiver 122 for receiving a signal from the control component and controlling the operation of the actuator 121. The receiver 122 is installed on the actuator 121 and is electrically connected to the control component via a cable.

[0040] Usually, the cut-off valve 11 should also have explosion-proof capability to improve the safety performance of the oil circuit cut-off device.

[0041] Specifically, an explosion-proof valve 12 is connected in series to the cut-off valve 11 using the connector 2. The cable of the explosion-proof valve 12 is introduced into the power control box of the fuel dispenser using an explosion-proof and flame-retardant wire plus a copper tube casing and is electrically connected to the control component. The cable of the cut-off valve 11 is introduced into the power control box of the fuel dispenser using an explosion-proof and flame-retardant wire plus a copper tube casing and is electrically connected to the control component. The cut-off valve 11 and the explosion-proof valve 12 are electrically connected to the control component using independent cables respectively, and are started by the 5V power supply of the fuel dispenser butt microswitch. When the control component receives a signal, the cut-off valve 11 and the explosion-proof valve 12 are controlled to work at the same time. Even if one of the cut-off valve 11 or the solenoid valve fails, the oil pipeline will not be out of control, thereby improving the safety performance of the oil circuit cut-off equipment.

[0042] The explosion-proof valve 12 and the cut-off valve 11 are both designed with explosion-proof structures, and can operate safely and reliably in flammable and explosive environments. The explosion-proof valve 12 and the cut-off valve 11 adopt advanced control technology, and can achieve precise flow control and pressure control. The explosion-proof valve 12 and the cut-off valve 11 have simple structures, small volumes, and light weights, and are very convenient to install and maintain. The solenoid valve has a fast response speed, can quickly respond to control signals, achieve precise control of the flow of the medium, and improve production efficiency and product quality.

[0043] Reference Figures 1 to 6 As shown, in some embodiments, the connector 2 includes an operating portion 21 and a connecting portion arranged on the operating portion 21, and the connecting portion includes a first connecting portion 22 assembled with the explosion-proof valve 12 and a second connecting portion 23 assembled with the shut-off valve 11.

[0044] The cross-section of the operating portion 21 is a polygon. The first connecting portion 22 and the operating portion 21 are an integrated structure. The second connecting portion 23 and the operating portion 21 are an integrated structure.

[0045] The first connection portion 22 and the second connection portion 23 are both provided with threads, and the major diameter of the threads provided on the first connection portion 22 is not equal to the major diameter of the threads provided on the second connection portion 23 .

[0046] The major diameter refers to the maximum diameter of the thread. Usually, the major diameter of the internal thread is the root diameter, while the major diameter of the external thread is the top diameter.

[0047] The connector 2 can be made of metal material, and the connector 2 should be coated with a corrosion-resistant layer so that the connector 2 can adapt to harsh environments.

[0048] The sizes of the first connection part 22 and the second connection part 23 are not limited and can be freely determined according to actual needs. For example, when the assembly part of the explosion-proof valve 12 is the same size as the assembly part of the shut-off valve 11, the sizes of the first connection part 22 and the second connection part 23 are also the same.

[0049] Reference Figures 1 to 6 As shown, in some embodiments, the receiver 122 includes a shell, the shell is provided with a wire outlet hole for leading out the cable, and a sealing layer is provided between the cable and the wire outlet hole.

[0050] The shell is provided with a cable connecting pipe 1211, and the cable connecting pipe 1211 is communicated with the wire outlet hole. The cable connecting pipe 1211 and the shell are an integrated structure.

[0051] The cable connecting tube 1211 is filled with a resin layer for fixing the cable, and the cable connecting tube 1211 includes a tube body 1212 and a conical tube 1213 for fixing the tube body 1212 to the shell, wherein the diameter of one end of the conical tube 1213 connected to the tube body 1212 is smaller than the diameter of one end of the conical tube 1213 connected to the shell, and the tube body 1212, the conical tube 1213 and the shell are an integrated structure.

[0052] The sealing layer can be replaced by a resin layer, that is, after the cables are laid, resin can be filled into the cable tube 1211. After the resin solidifies, it can seal the gap between the cable and the cable tube 1211, forming an effective explosion-proof performance.

[0053] The cable arrangement of the cut-off valve 11 may refer to the cable arrangement of the explosion-proof valve 12 .

[0054] The housing usually includes a shell portion and a cover portion. The electronic components of the receiver 122 are installed in the shell portion. The cover portion can be fixed to the shell portion by screws, and a sealing ring can be provided between the cover portion and the shell portion.

[0055] The actuator 121 and the receiver 122 may share a housing. The actuator 121 and the receiver 122 may also have independent housings, and the two housings may be connected by threads, or the two housings may be connected by other connection methods.

[0056] In some embodiments, the connector 2 is further provided with a water removal filter 3 for removing moisture from the medium flowing through the pipeline.

[0057] The dewatering filter element 3 is installed in the connector 2 by means of threads, the connector 2 is provided with internal threads, the dewatering filter element 3 is provided with external threads, and one end of the dewatering filter element 3 is provided with an operation groove for facilitating the rotation of the dewatering filter element 3. The dewatering filter element 3 does not need to be powered off during replacement, and does not affect the refueling of other refueling guns, thereby reducing the loss of vehicles during the replacement process.

[0058] In addition to being arranged in the connector 2, the dewatering filter element 3 can also be arranged in other positions. On the premise that the dewatering filter element 3 is arranged in the connector 2, the arrangement positions and arrangement methods of other dewatering filter elements 3 refer to the existing technology.

[0059] In some embodiments, the cut-off valve 11 and the explosion-proof valve 12 are coated with a corrosion-resistant layer. The medium used in the oil and gas industry is usually highly corrosive. The explosion-proof valve 12 and the cut-off valve 11 are made of corrosion-resistant materials and can operate stably for a long time in a harsh working environment.

[0060] The above introduces the subject technical solution of the utility model and the corresponding details. It can be understood that the above introduction is only some implementation plans of the subject technical solution of the utility model, and some details can be omitted during the specific implementation.

[0061] In addition, in some embodiments of the above utility model, multiple embodiments may be implemented in combination, and various combination schemes are not listed one by one due to space limitations. Those skilled in the art can freely combine and implement the above embodiments according to needs during specific implementation to obtain a better application experience.

[0062] When implementing the subject technical solution of the utility model, those skilled in the art can obtain other detailed configurations or drawings according to the subject technical solution of the utility model and the drawings. Obviously, these details still fall within the scope covered by the subject technical solution of the utility model without departing from the subject technical solution of the utility model.

Claims

1. An oil circuit cut-off device for a fuel dispenser, characterized in that: It comprises a solenoid valve assembly (1) connected in series to an oil pipe and a control assembly for controlling the operation of the solenoid valve assembly (1); The solenoid valve assembly (1) comprises a cut-off valve (11) and an explosion-proof valve (12) connected in series with the cut-off valve (11); the cut-off valve (11) and the explosion-proof valve (12) are connected in series via a connector (2); The explosion-proof valve (12) comprises an actuator (121) for cutting off an oil pipe and a receiver (122) for receiving a signal from the control component and controlling the operation of the actuator (121); the receiver (122) is mounted on the actuator (121); and the receiver (122) is electrically connected to the control component via a cable.

2. The oil circuit cut-off device for a fuel dispenser according to claim 1, characterized in that: The connector (2) comprises an operating portion (21) and a connecting portion arranged on the operating portion (21), wherein the connecting portion comprises a first connecting portion (22) assembled with the explosion-proof valve (12) and a second connecting portion (23) assembled with the shut-off valve (11).

3. The oil circuit cut-off device for a fuel dispenser according to claim 2, characterized in that: The cross-sectional shape of the operating portion (21) is a polygon; the first connecting portion (22) and the operating portion (21) are an integrated structure; and the second connecting portion (23) and the operating portion (21) are an integrated structure.

4. The oil circuit cut-off device for a fuel dispenser according to claim 3, characterized in that: The first connecting portion (22) and the second connecting portion (23) are both provided with threads, and the major diameter of the threads provided on the first connecting portion (22) is not equal to the major diameter of the threads provided on the second connecting portion (23).

5. The oil circuit cut-off device for a fuel dispenser according to claim 1, characterized in that: The receiver (122) comprises a shell, the shell is provided with a wire outlet hole for leading out the cable, and a sealing layer is provided between the cable and the wire outlet hole.

6. The oil circuit cut-off device for a fuel dispenser according to claim 5, characterized in that: The shell is provided with a cable connecting pipe (1211), the cable connecting pipe (1211) is communicated with the wire outlet hole, and the cable connecting pipe (1211) and the shell are an integrated structure.

7. The oil circuit cut-off device for a fuel dispenser according to claim 6, characterized in that: The cable connecting tube (1211) is filled with a resin layer for fixing the cable, and the cable connecting tube (1211) comprises a tube body (1212) and a conical tube (1213) for fixing the tube body (1212) to the shell, wherein the diameter of one end of the conical tube (1213) connected to the tube body (1212) is smaller than the diameter of one end of the conical tube (1213) connected to the shell, and the tube body (1212), the conical tube (1213) and the shell are an integrated structure.

8. The oil circuit cut-off device for a fuel dispenser according to claim 1, characterized in that: The connector (2) is also provided with a water removal filter element (3) for removing moisture from the medium flowing through the pipeline.

9. The oil circuit cut-off device for a fuel dispenser according to claim 8, characterized in that: The dewatering filter element (3) is installed in the connector (2) via threads, the connector (2) is provided with internal threads, the dewatering filter element (3) is provided with external threads, and one end of the dewatering filter element (3) is provided with an operating groove for facilitating the rotation of the dewatering filter element (3).

10. The oil circuit cut-off device for a fuel dispenser according to any one of claims 1 to 9, characterized in that: The cut-off valve (11) and the explosion-proof valve (12) are both coated with a corrosion-resistant layer.

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