CN216741778U - Anti-overheating diesel preheater - Google Patents
Anti-overheating diesel preheater Download PDFInfo
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- CN216741778U CN216741778U CN202220076493.7U CN202220076493U CN216741778U CN 216741778 U CN216741778 U CN 216741778U CN 202220076493 U CN202220076493 U CN 202220076493U CN 216741778 U CN216741778 U CN 216741778U
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Abstract
The utility model relates to an anti-overheating diesel preheater which is inserted into an oil tank through an installation cylinder, a heating rod extends into the oil tank to heat oil in the oil tank, the end part of the installation cylinder is sealed through a sealing plug to prevent the oil from leaking, and meanwhile, the heating rod is connected with a power supply of an automobile, such as a storage battery, through two binding posts to obtain electric energy to start heating. The temperature switch is contacted with the oil flowing in through the oil hole on the installation cylinder, so that the temperature of the oil in the oil tank is detected, and when the temperature reaches a certain degree, the temperature switch can act and disconnect the electric connection between the heating rod and the binding post, so that the operation of the heating rod is stopped. Compared with the prior art, the automatic power-off of the heating rod is realized through the temperature switch arranged in the mounting cylinder, and meanwhile, the temperature switch is protected by the mounting cylinder, so that the problems that the temperature switch moves along with oil in an oil tank, drops and the like are effectively prevented, the device is more stable in operation, longer in service life and good in practicability.
Description
Technical Field
The utility model relates to the technical field of automobile engine parts, in particular to an anti-overheating diesel preheater.
Background
Under the condition of normal temperature, the diesel oil has the advantages of low viscosity, good fluidity, good spraying effect and full combustion, thereby having low emission and low oil consumption and being generally used as a fuel oil raw material of a large-scale commercial vehicle. However, under some cold conditions, diesel oil becomes turbid, the viscosity of the diesel oil increases, the flowability and the atomization effect are both poor, and at the moment, the automobile is started, so that the phenomena of wax precipitation and icing of the diesel oil in an oil-water separator and a filter can be caused, a filter screen and some oil conveying pipelines are blocked, and the faults of difficult starting, sudden flameout in a travelling crane and the like are caused, so that accidents are caused.
Therefore, today's diesel engines are equipped with a preheating device for heating diesel oil, for example, chinese utility model patent CN201486696U discloses a diesel vehicle oil circuit heater, which comprises a hollow bolt and a heating rod, and the hollow bolt is connected with the heating rod. The width of the heating rod is smaller than the inner diameter of an oil outlet of the oil tank. The heating rod comprises a heating element, a positive electrode, an insulating layer and a negative electrode, wherein the heating element and the positive electrode are respectively connected with the negative electrode, and the insulating layer separates the positive electrode from the negative electrode. The negative pole of the heating rod is connected with the end part of the bolt rod of the hollow bolt. And a positive leading-out lead on the heating rod passes through the through hole of the hollow bolt. The utility model has the advantages of do not destroy original oil tank structure of diesel vehicle, safe and reliable, with low costs and heating effect is obvious.
However, the heater does not have an automatic stop function, and if the heating is stopped in time after the temperature of the diesel oil rises to an appropriate temperature, the heater may not only waste electric energy, but also may cause undesirable phenomena such as burning of an oil pipe, an oil tank, accelerated aging of the oil pipe, and the like.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide an overheat prevention diesel preheater for solving the problem that the conventional diesel heater does not have an automatic stop function.
The utility model provides an anti-overheating diesel preheater which is arranged on an oil tank and comprises:
the oil tank is inserted into the mounting cylinder, and the side wall of the mounting cylinder is provided with an oil through hole for oil to flow through;
the heating rod is provided with two power supply ends, is inserted into one end of the mounting cylinder and is connected with the inner wall of the mounting cylinder in a sealing manner;
the sealing plug is hermetically connected to the other end of the mounting cylinder;
the two binding posts are inserted into the sealing plug and extend into the mounting cylinder, and are respectively electrically connected with the two power supply ends and are respectively used for electrically connecting the positive electrode and the negative electrode of the automobile power supply to supply power to the heating rod;
the temperature switch is arranged in the mounting cylinder, is arranged on an electric connection circuit between the binding post and the power supply end, and is used for disconnecting the power supply of the heating rod when the temperature of the mounting cylinder exceeds the preset value of the temperature switch.
Preferably, the heating device also comprises a connecting cylinder, wherein the connecting cylinder comprises a cylinder body, an inner flanging and an outer flanging, the cylinder body is sleeved on the heating rod, the outer wall of the cylinder body is provided with threads, and the cylinder body is inserted into one end of the mounting cylinder and is in threaded connection with the mounting cylinder; the inner flanging is formed at one end of the cylinder body facing the inside of the mounting cylinder, extends towards the inner side of the cylinder body and is abutted against the end part of the heating rod; the flanging is formed at one end of the cylinder body, which deviates from the installation cylinder, extends to the outer side of the cylinder body and is abutted to the end part of the installation cylinder.
Preferably, both power supply ends of the heating rod are positioned at the end part of the heating rod facing the mounting cylinder and penetrate through the inward flanging.
Preferably, the heating rod further comprises a heat conduction shell and a heating wire, the heat conduction shell is hollow and cylindrical, one end of the heat conduction shell is inserted into the barrel, the two power supply ends are located at one end of the heat conduction shell, the heat conduction shell is arranged in the heating wire, and the two power supply ends are electrically connected with the two ends of the heating wire respectively.
Preferably, the circumferential surface of one end of the heat-conducting casing is formed with a screw thread, and is screw-coupled with the cylinder.
Preferably, the sealing plug further comprises a retaining ring, the retaining ring is sleeved at the other end of the mounting cylinder and is in threaded connection with the mounting cylinder, a folded edge is formed at one end, away from the mounting cylinder, of the retaining ring towards the inner side of the retaining ring, and the folded edge abuts against the sealing plug.
Preferably, the sealing plug is divided into an inserting section, an abutting section and an extending section in sequence along the direction of the mounting cylinder deviating from the heating rod, the inserting section is inserted into the mounting cylinder, the diameter of the abutting section is larger than that of the inserting section, two end faces of the abutting section are respectively abutted to the mounting cylinder and the retaining ring, and the extending section penetrates through the folded edge of the retaining ring.
Preferably, the insertion section and the mounting cylinder are in interference fit, and one end of the insertion section, which is far away from the abutting section, forms a conical surface.
Preferably, the extension direction of the binding post is parallel to the mounting barrel.
Preferably, the oil tank further comprises a flange ring, wherein the flange ring is sleeved on the mounting cylinder, is positioned between the other end of the mounting cylinder and the oil through hole and is used for abutting against the outer wall of the oil tank.
According to the anti-overheating diesel preheater provided by the utility model, the installation cylinder is inserted into the oil tank, the heating rod extends into the oil tank to heat oil in the oil tank, the end part of the installation cylinder is sealed through the sealing plug to prevent the oil from leaking, and meanwhile, the heating rod is connected with a power supply of an automobile, such as a storage battery, through two binding posts to obtain electric energy to start heating. The temperature switch is contacted with the oil flowing into the mounting cylinder through the oil hole, so that the temperature of the oil in the oil tank can be detected, and when the temperature reaches a certain degree, the mounting cylinder can act and disconnect the electric connection between the heating rod and the binding post, so that the mounting cylinder stops working.
Compared with the prior art, the automatic power-off of the heating rod is realized through the temperature switch arranged in the mounting cylinder, and meanwhile, the temperature switch is protected by the mounting cylinder, so that the problems that the temperature switch moves along with oil in an oil tank, drops and the like are effectively prevented, the device is more stable in operation, longer in service life and good in practicability.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an anti-overheating diesel preheater provided in the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic circuit diagram of an embodiment of an overheat prevention diesel preheater provided in the present invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.
Referring to fig. 1 to 3, the utility model provides an embodiment of an overheating prevention diesel preheater, which includes an installation cylinder 1, a heating rod 2, a sealing plug 3, two binding posts 4, and a temperature switch 5. Wherein the mounting cylinder 1 is inserted into an oil tank of an automobile, and the side wall of the mounting cylinder 1 is provided with an oil through hole 6 for oil to flow through. The heating rod 2 has two power supply ends 21, and the heating rod 2 is inserted into one end of the mounting cylinder 1. Sealing plug 3 is connected in the other end of installation section of thick bamboo 1 sealedly, and two terminals 4 all insert from installation section of thick bamboo 1 outside and locate sealing plug 3 to extend to in the installation section of thick bamboo 1, two feeder ear 21 are connected to two terminals 4 electricity respectively, and are used for the positive negative pole of electricity connection vehicle power supply respectively to supply power for heating rod 2. The temperature switch 5 is arranged in the mounting cylinder 1 and is arranged on an electric connection circuit between the binding post 4 and the power supply end 21 and used for cutting off the power supply of the heating rod 2 at a certain temperature.
The utility model provides an overheating-prevention diesel preheater which is inserted into an oil tank through an installation cylinder 1, so that a heating rod 2 extends into the oil tank to heat oil in the oil tank, the end part of the installation cylinder 1 is sealed through a sealing plug 3 to prevent the oil from leaking, and meanwhile, the heating rod 2 is connected with a power supply of an automobile, such as a storage battery, through two wiring terminals 4 to obtain electric energy to start heating. The oil flowing into the mounting cylinder 1 through the oil hole 6 contacts the temperature switch 5, so that the temperature of the oil in the oil tank is detected, and when the temperature reaches a certain degree, the mounting cylinder can act and disconnect the electric connection between the heating rod 2 and the wiring terminal 4, so that the mounting cylinder stops working.
The above components will be described in more detail below:
the installation cylinder 1 in this embodiment is made of a metal material, and the outer wall and the inner wall of one end of the installation cylinder are both provided with threads which are respectively used for being connected with an oil drum and a connecting cylinder 7 which will be mentioned later. The outer wall of the other end is also threaded for connection with a retaining ring 8 as will be described later.
As a preferred embodiment, both power supply ends 21 of the heating rod 2 of the present embodiment are located at the end of the heating rod 2 facing the mounting cylinder 1 and pass through the inward flange 72 of the connecting cylinder 7, which will be mentioned later. Make two power supply ends 21 all be located the inboard of connecting cylinder 7, and make things convenient for it to be connected with temperature switch 5 and terminal 4 electricity, more conveniently walk the line.
As a preferred embodiment, the heating rod 2 in this embodiment further includes a heat conducting shell 22 and a heating wire 23, the heat conducting shell 22 is hollow and cylindrical, is made of ceramic and other materials, and has good heat conductivity, one end of the heat conducting shell 22 is inserted into the barrel 71, the two power supply ends 21 are both located at one end of the heat conducting shell 22, the heating wire 23 is embedded in the heat conducting shell 22, two ends of the heating wire 23 are respectively electrically connected to the two power supply ends 21, and the connecting wire is an insulated wire.
It is understood that the above description of the heating rod 2 is only used as an example of a preferred embodiment, and in practice, the heating rod 2 may also be heated by connecting a plurality of heating wires 23 in parallel, and of course, other existing heating rods 2 may also be further used.
Further, in the present embodiment, a peripheral surface of one end of the heat conductive housing 22 facing the mounting cylinder 1 is formed with a screw thread for screwing with the cylinder 71 in the connecting cylinder 7 to be mentioned later, so as to connect the heating rod 2 and the mounting cylinder 1.
As a preferred embodiment, the sealing plug 3 in this embodiment is sequentially divided into an insertion section 31, an abutting section 32 and an extension section 33 along the direction of the mounting tube 1 away from the heating rod 2, the insertion section 31 is inserted into the mounting tube 1, the diameter of the abutting section 32 is larger than that of the insertion section 31, two end surfaces of the abutting section 32 abut against the mounting tube 1 and the retaining ring 8 respectively, and the extension section 33 passes through a hem of the retaining ring 8 to be mentioned later.
Specifically, the insertion section 31 and the mounting tube 1 are in interference fit, and one end of the insertion section 31 facing away from the abutting section 32 is formed into a conical surface. The installation barrel 1 can be more conveniently inserted, and meanwhile, certain firmness is achieved after the installation barrel is inserted. The abutting section 32 and the protruding section 33 are respectively used for abutting the retaining ring 8 so as to be pressed against the mounting tube 1.
In a preferred embodiment, the terminal 4 extends parallel to the mounting tube 1, and penetrates through the sealing plug 3 to connect the heating rod 2 and the temperature switch 5 with an external power supply. It is easy to understand that the connecting column can be bent according to the different specific structures in the vehicle.
The temperature switch 5 in this embodiment is a waterproof normally closed temperature switch 5, and when the temperature reaches a set value, the temperature is switched from a closed state to an open state to cut off the power supply to the heating rod 2. In practice, however, according to different control strategies, other types of temperature switches 5, such as the interval temperature switch 5, may also be used, so that the temperature switch can be turned off at a high temperature, and the power supply to the heating rod 2 can be automatically and pneumatically performed at a certain low temperature to preheat the oil.
As a preferred embodiment, the overheating prevention diesel preheater in the present embodiment further includes a connecting cylinder 7, and the connecting cylinder 7 includes a cylinder body 71, an inner flange 72, and an outer flange 73. Wherein the heating rod 2 is sleeved with the cylinder body 71, the outer wall of the cylinder body 71 is provided with threads, and the cylinder body 71 is inserted into one end of the mounting cylinder 1 and is in threaded connection with the mounting cylinder. The inward flange 72 is formed at one end of the cylinder 71 facing the inside of the mounting cylinder 1, extends toward the inside of the cylinder 71, and abuts against the end of the heating rod 2. The inner flange 72 is used for limiting the heating rod 2. Similarly, the flanging 73 is formed at one end of the cylinder body 71, which is far away from the installation cylinder 1, extends towards the outer side of the cylinder body 71 and is abutted against the end part of the installation cylinder 1, and the flanging 73 is used for limiting the connection cylinder 7 per se. The heating plate can be firmly connected to the mounting cylinder 1 in a fixed position by means of the connecting cylinder 7.
Further, as a preferred embodiment, the anti-overheating diesel preheater in the embodiment further includes a retaining ring 8, the retaining ring 8 is sleeved on the other end of the mounting tube 1 and is in threaded connection with the other end of the mounting tube 1, a folded edge is formed at one end of the retaining ring 8, which is away from the mounting tube 1, towards the inner side of the retaining ring 8, the folded edge abuts against the sealing plug 3, and the retaining ring 8 is used for fixing the sealing plug 3 to the mounting tube 1.
Further, as a preferred embodiment, the overheating prevention diesel preheater in the present embodiment further includes a flange ring 9, and the flange ring 9 is sleeved on the mounting cylinder 1 and located between the other end of the mounting cylinder 1 and the oil through hole 6 for abutting against the outer wall of the oil tank. The flange ring 9 and the mounting tube 1 are integrally formed and together form the shape of a bolt.
According to the anti-overheating diesel preheater provided by the utility model, the mounting cylinder 1 is inserted into an oil tank, the heating rod 2 extends into the oil tank to heat oil therein, the end part of the mounting cylinder 1 is sealed by the sealing plug 3 to prevent the oil from leaking, and meanwhile, the heating rod 2 is connected with a power supply of an automobile, such as a storage battery, through the two wiring terminals 4 to obtain electric energy to start heating. The oil flowing into the mounting cylinder 1 through the oil hole 6 contacts the temperature switch 5, so that the temperature of the oil in the oil tank is detected, and when the temperature reaches a certain degree, the mounting cylinder can act and disconnect the electric connection between the heating rod 2 and the wiring terminal 4, so that the mounting cylinder stops working.
Compared with the prior art, the automatic power-off of the heating rod 2 is realized through the temperature switch 5 arranged in the mounting cylinder 1, and meanwhile, the temperature switch 5 is protected by the mounting cylinder 1, so that the problems that the temperature switch 5 moves along with oil in an oil tank, falls off and the like are effectively prevented, the device is more stable in operation, longer in service life and good in practicability.
In the present specification, the embodiments are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same or similar parts between the embodiments are referred to each other.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. The utility model provides a prevent overheated diesel oil pre-heater installs in the oil tank which characterized in that includes:
the oil tank is inserted into the mounting cylinder, and the side wall of the mounting cylinder is provided with an oil through hole for oil to flow through;
the heating rod is provided with two power supply ends, is inserted into one end of the mounting cylinder and is connected with the inner wall of the mounting cylinder in a sealing manner;
the sealing plug is hermetically connected to the other end of the mounting cylinder;
the two binding posts are inserted into the sealing plug and extend into the mounting cylinder, and are respectively electrically connected with the two power supply ends and are respectively used for electrically connecting the positive electrode and the negative electrode of an automobile power supply to supply power to the heating rod;
the temperature switch is arranged in the mounting cylinder, is arranged on an electric connection circuit between the binding post and the power supply end, and is used for disconnecting the power supply of the heating rod when the temperature of the mounting cylinder exceeds the preset value of the temperature switch.
2. The anti-overheating diesel preheater according to claim 1, further comprising a connecting cylinder, wherein the connecting cylinder comprises a cylinder body, an inner flange and an outer flange, the cylinder body is sleeved on the heating rod, the outer wall of the cylinder body is provided with threads, and the cylinder body is inserted into one end of the mounting cylinder and is in threaded connection with the mounting cylinder; the inner flanging is formed at one end of the cylinder body facing the inside of the mounting cylinder, extends towards the inner side of the cylinder body and is abutted against the end part of the heating rod; the flanging is formed at one end, deviating from the installation cylinder, of the cylinder body, extends towards the outer side of the cylinder body and is abutted to the end part of the installation cylinder.
3. An anti-overheating diesel preheater according to claim 2, wherein both power supply ends of the heating rod are located at the end of the heating rod facing the mounting cylinder and pass through the inner flange.
4. The anti-overheating diesel preheater according to claim 3, wherein the heating rod further comprises a heat conducting shell and a heating wire, the heat conducting shell is hollow and cylindrical, one end of the heat conducting shell is inserted into the barrel, both of the power supply ends are located at one end of the heat conducting shell, the heating wire is arranged in the heat conducting shell, and both ends of the heating wire are electrically connected with both of the power supply ends respectively.
5. An anti-overheating diesel preheater according to claim 4, wherein a circumferential surface of one end of said heat conductive housing is formed with a screw thread to be screw-coupled with said cylinder.
6. An overheat-preventing diesel preheater as claimed in any one of claims 1 to 5, further comprising a retaining ring, wherein the retaining ring is sleeved at the other end of the mounting cylinder and is in threaded connection with the mounting cylinder, a folded edge is formed at one end of the retaining ring, which is far away from the mounting cylinder, towards the inner side of the retaining ring, and the folded edge abuts against the sealing plug.
7. The anti-overheating diesel preheater according to claim 6, wherein the sealing plug is sequentially divided into an insertion section, an abutting section and an extension section along a direction of the mounting cylinder away from the heating rod, the insertion section is inserted into the mounting cylinder, the diameter of the abutting section is larger than that of the insertion section, two end faces of the abutting section abut against the mounting cylinder and the retaining ring respectively, and the extension section penetrates through a folded edge of the retaining ring.
8. An anti-overheating diesel preheater according to claim 7, wherein said insertion section and said mounting cylinder are in interference fit, and wherein an end of said insertion section facing away from said abutment section is tapered.
9. An overheat preventing diesel preheater as claimed in any one of claims 1 to 5, wherein the extension direction of the terminal is parallel to the mounting cylinder.
10. An overheat-preventing diesel preheater as claimed in any one of claims 1 to 5, further comprising a flange ring fitted around said mounting cylinder between the other end of said mounting cylinder and said oil through hole for abutting against an outer wall of a fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220076493.7U CN216741778U (en) | 2022-01-12 | 2022-01-12 | Anti-overheating diesel preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220076493.7U CN216741778U (en) | 2022-01-12 | 2022-01-12 | Anti-overheating diesel preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216741778U true CN216741778U (en) | 2022-06-14 |
Family
ID=81913002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220076493.7U Active CN216741778U (en) | 2022-01-12 | 2022-01-12 | Anti-overheating diesel preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216741778U (en) |
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2022
- 2022-01-12 CN CN202220076493.7U patent/CN216741778U/en active Active
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