Oil pipe with heating function

Abstract

The utility model belongs to the technical field of oil delivery pipes, and particularly relates to an oil pipe with a heating function. Comprising a stainless steel inner pipe, two electric heating wires are spirally wound outside the stainless steel inner pipe, the two electric heating wires are arranged at intervals, the stainless steel inner pipe is sleeved with an insulating sleeve, the electric heating wires are located between the stainless steel inner pipe and the insulating sleeve, and the two ends of each electric heating wire are fixedly connected with wires respectively. Wherein the wire at one end penetrates out of the insulating sleeve and is fixedly connected with a first connector, the wire at the other end penetrates out of the insulating sleeve and is fixedly connected with a second connector matched with the first connector, the first connectors on the two electric heating wires are located at the two ends of the stainless steel inner pipe respectively, and a third connector is installed at one end of the stainless steel inner pipe. And a fourth joint matched with the third joint is mounted at the other end. According to the utility model, the electric heating wire is wound outside the stainless steel inner pipe, so that the flowing of diesel oil is not hindered, the sealing performance of the stainless steel inner pipe is not influenced, and the oil leakage condition can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission oil pipes, and particularly relates to an oil pipe with a heating function. Background Art

[0002] Most of the oil transmission pipes on the market do not have a heating device. When used in winter, due to the waxing of diesel, the engine or heater cannot work smoothly. In remote alpine regions, it is impossible to add diesel that meets the ambient temperature label, making this problem more obvious.

[0003] The Chinese utility model patent with the publication number CN213807901U discloses an electrically heated transparent oil pipe. By arranging an electric heating wire inside the oil pipe to heat the diesel, the purpose of avoiding wax deposition in the pipeline is achieved. However, since the electric heating wire is directly arranged inside the oil pipe, the presence of the electric heating wire will also hinder the flow of diesel, thereby affecting the efficiency of diesel transportation. Moreover, the electric heating wire needs to pass through the inside of the oil pipe and be connected to the power supply, so the sealing performance of the oil pipe is not easy to guarantee, and oil leakage is likely to occur. Summary of the Utility Model

[0004] In view of the above problems in the prior art, the utility model discloses an oil pipe with a heating function, and specifically discloses the following technical solutions:

[0005] An oil pipe with a heating function includes a stainless steel inner pipe, and two electric heating wires are spirally wound around the outside of the stainless steel inner pipe. The two electric heating wires are arranged at intervals. An insulating sleeve is sleeved outside the stainless steel inner pipe. The electric heating wires are located between the stainless steel inner pipe and the insulating sleeve. The two ends of the electric heating wires are respectively fixedly connected with wires. One end of the wire passes through the insulating sleeve and is fixedly connected with a first connector. The other end of the wire passes through the insulating sleeve and is fixedly connected with a second connector that matches the first connector. The first connectors on the two electric heating wires are respectively located at both ends of the stainless steel inner pipe. A third connector is installed at one end of the stainless steel inner pipe, and a fourth connector that matches the third connector is installed at the other end.

[0006] Further, the third joint includes a fixing part and a connecting part. Both the fixing part and the connecting part are cylindrical, and the diameter of the connecting part is smaller than that of the fixing part. One end of the fixing part is fixedly connected to the stainless steel inner tube, and the other end is fixedly connected to the connecting part. An oil hole communicating with the stainless steel inner tube is provided through the fixing part and the connecting part. An external thread is provided on the outer side of the connecting part. The fourth joint includes a cylindrical connecting sleeve. A baffle is fixedly connected to one end of the connecting sleeve close to the third joint. One end of the stainless steel inner tube away from the third joint passes through the through hole on the baffle and extends into the connecting sleeve, and a clamping plate is fixedly connected to its outer side. An internal thread matching the external thread on the connecting part is provided on the inner wall of the connecting sleeve.

[0007] Further, a first annular sealing rubber pad is provided between the baffle and the clamping plate, and a second annular sealing rubber pad is fixedly connected to the end face of the clamping plate away from the first annular sealing rubber pad.

[0008] Further, the electric heating wire is made of nickel-chromium alloy wire.

[0009] Further, the insulating sleeve is made of PVC heat-shrinkable tube.

[0010] Further, one end of one of the electric heating wires is connected to a temperature control switch, and the temperature control switch is attached to the outer wall of the stainless steel inner tube.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The electric heating wire in the present utility model is wound outside the stainless steel inner tube, so it will not hinder the flow of diesel and will not affect the sealing performance of the stainless steel inner tube, thus avoiding oil leakage.

[0013] The third joint and the fourth joint are respectively installed at both ends of the stainless steel inner tube. Multiple oil pipes can be hermetically connected through the third joint and the fourth joint to obtain a spliced long oil pipe to meet different usage requirements.

[0014] There are two electric heating wires wound around the stainless steel inner tube. The two ends of the electric heating wires are respectively connected with a first joint and a second joint that cooperate with each other, and the positions of the two joints on the two electric heating wires are exactly opposite. Therefore, when the oil pipe is used alone, the first joint and the second joint on one side of the oil pipe can be connected to each other, and the first joint and the second joint on the other side are connected to the power supply, so as to form a closed loop to heat the stainless steel inner tube. When multiple oil pipes are spliced and used, the electric heating wires on adjacent two oil pipes can be connected in series through the corresponding first joint and second joint, and the first joint and the second joint at the tail end of the spliced long oil pipe are connected to each other, and the first joint and the second joint at the head end of the spliced long oil pipe are connected to the power supply to form a closed long loop, so as to achieve the effect of heating multiple oil pipes simultaneously with one power supply. Brief Description of the Drawings

[0015] Figure 1 This is the front view of the present utility model.

[0016] Figure 2 This is the sectional view of the present utility model.

[0017] Figure 3 This is a schematic diagram of the use of two spliced oil pipes.

[0018] 1 - Stainless steel inner tube, 2 - Electric heating wire, 3 - Insulating sleeve, 4 - Conducting wire, 5 - First joint, 6 - Second joint, 7 - Fixing part, 8 - Connecting part, 9 - Connecting sleeve, 10 - Baffle, 11 - Clamping plate, 12 - First annular sealing rubber pad, 13 - Second annular sealing rubber pad, 14 - Temperature control switch. Detailed Description of the Embodiment

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Refer to Figures 1-3, An oil pipe with a heating function, including a stainless - steel inner pipe 1, outside which there are two electric heating wires 2 wound in a spiral shape. The two electric heating wires 2 are arranged at intervals. An insulating sleeve 3 is sleeved outside the stainless - steel inner pipe 1. The electric heating wires 2 are located between the stainless - steel inner pipe 1 and the insulating sleeve 3. The two ends of the electric heating wires 2 are respectively fixedly connected with wires 4. One end of the wire 4 passes through the insulating sleeve 3 and is fixedly connected with a first connector 5. The other end of the wire 4 passes through the insulating sleeve 3 and is fixedly connected with a second connector 6 that cooperates with the first connector 5. The first connectors 5 on the two electric heating wires 2 are respectively located at both ends of the stainless - steel inner pipe 1. One end of the stainless - steel inner pipe 1 is equipped with a third connector, and the other end is equipped with a fourth connector that cooperates with the third connector.

[0021] In this embodiment, the third connector includes a fixing part 7 and a connecting part 8. Both the fixing part 7 and the connecting part 8 are cylindrical, and the diameter of the connecting part 8 is smaller than that of the fixing part 7. One end of the fixing part 7 is fixedly connected with the stainless - steel inner pipe 1, and the other end is fixedly connected with the connecting part 8. An oil hole communicating with the stainless - steel inner pipe 1 is penetrated through the fixing part 7 and the connecting part 8. An external thread is provided on the outer side of the connecting part 8. The fourth connector includes a cylindrical connecting sleeve 9. One end of the connecting sleeve 9 close to the third connector is fixedly connected with a baffle 10. One end of the stainless - steel inner pipe 1 far from the third connector passes through the through - hole on the baffle 10 and extends into the connecting sleeve 9, and an annular clamping plate 11 is fixedly connected to its outer side. An internal thread that cooperates with the external thread on the connecting part 8 is provided on the inner wall of the connecting sleeve 9.

[0022] In this embodiment, a first annular sealing rubber pad 12 is provided between the baffle 10 and the clamping plate 11, and a second annular sealing rubber pad 13 is fixedly connected to the end face of the clamping plate 11 far from the first annular sealing rubber pad 12.

[0023] In this embodiment, the electric heating wire 2 is made of nickel - chromium alloy wire, which can generate heat after being electrified, so as to heat the stainless - steel inner pipe 1 and the diesel flowing through the stainless - steel inner pipe 1.

[0024] In this embodiment, the insulating sleeve 3 is made of PVC heat - shrinkable tube, which has good insulation characteristics, and the PVC heat - shrinkable tube has relatively strong wear - resistance characteristics, which can effectively protect the electric heating wire 2 and the stainless - steel inner pipe 1.

[0025] In this embodiment, one end of one of the electric heating wires 2 is connected with a temperature - control switch 14. The temperature - control switch 14 is attached to the outer wall of the stainless - steel inner pipe 1. The temperature - control switch 14 can monitor the temperature of the stainless - steel inner pipe 1 in real time. When the temperature of the stainless - steel inner pipe 1 is higher than the predetermined temperature, the temperature - control switch 14 automatically disconnects, so as to stop heating the stainless - steel inner pipe 1 to avoid the oil temperature inside being too high.

[0026] When the tubing is used singly, the first connector 5 and the second connector 6 on one side of the tubing can be connected to each other, and the first connector 5 and the second connector 6 on the other side can be connected to a power source, so as to form a closed loop to heat the stainless steel inner tube 1;

[0027] When the length of one tubing cannot meet the usage requirements, two or more tubings can be connected through the third connector and the fourth connector to obtain a spliced long tubing. Then, the electric heating wires 2 on adjacent tubings are connected in series through the corresponding first connectors 5 and second connectors 6, and the first connectors 5 and second connectors 6 at the tail end of the spliced long tubing are connected to each other, and the first connectors 5 and second connectors 6 at the head end of the spliced long tubing are connected to a power source to form a closed long loop, so as to achieve the effect of heating multiple tubings simultaneously with one power source.

[0028] The above is only a preferred embodiment of the present invention, and does not impose any limitation on the technical scope of the present invention. Therefore, any minor modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the scope of the technical solution of the present invention.

Claims

1. An oil pipe with heating function, characterized in that: It comprises a stainless steel inner tube, two electric heating wires are spirally wound around the outside of the stainless steel inner tube, the two electric heating wires are arranged at intervals, an insulating sleeve is arranged outside the stainless steel inner tube, the electric heating wire is located between the stainless steel inner tube and the insulating sleeve, both ends of the electric heating wire are respectively fixedly connected with wires, the wire at one end passes through the insulating sleeve and is fixedly connected with a first joint, the wire at the other end passes through the insulating sleeve and is fixedly connected with a second joint matching with the first joint, the first joints on the two electric heating wires are respectively located at both ends of the stainless steel inner tube, a third joint is installed at one end of the stainless steel inner tube, and a fourth joint matching with the third joint is installed at the other end.

2. The oil pipe with heating function according to claim 1, characterized in that: The third joint includes a fixing portion and a connecting portion, both of which are cylindrical and have a diameter smaller than that of the fixing portion, one end of the fixing portion is fixedly connected to the stainless steel inner tube, and the other end is fixedly connected to the connecting portion, the fixing portion and the connecting portion are penetrated with oil holes communicating with the stainless steel inner tube, and an external thread is provided on the outer side of the connecting portion, the fourth joint includes a cylindrical connecting sleeve, an end of the connecting sleeve close to the third joint is fixedly connected to a baffle, an end of the stainless steel inner tube away from the third joint passes through the through hole on the baffle and extends into the connecting sleeve, and a clamping plate is fixedly connected to the outer side of the connecting sleeve, and an internal thread matching the external thread on the connecting portion is provided on the inner wall of the connecting sleeve.

3. The oil pipe with heating function according to claim 2, characterized in that: A first annular sealing rubber pad is arranged between the baffle plate and the clamping plate, and a second annular sealing rubber pad is fixedly connected to the end surface of the clamping plate away from the first annular sealing rubber pad.

4. The oil pipe with heating function according to claim 1, characterized in that: The electric heating wire is made of nickel-chromium alloy wire.

5. The oil pipe with heating function according to claim 1, characterized in that: The insulating sleeve adopts a PVC heat shrink tube.

6. The oil pipe with heating function according to claim 1, characterized in that: One end of one of the electric heating wires is connected to a temperature control switch, and the temperature control switch is attached to the outer wall of the stainless steel inner tube.

Images