Automobile engine oil drainage bolt device

Abstract

The utility model discloses an automobile engine oil drainage bolt device which comprises a bolt seat, an oil drainage screw and a metal sealing plug, the bolt seat is installed at an oil drainage port of an oil tank, a cavity is arranged inside the bottom end of the bolt seat, an oil drainage channel is arranged on the bolt seat above the cavity, and a sealing port is arranged at the top end of the oil drainage channel. One end of the oil drainage channel is communicated with the sealing opening, the other end of the oil drainage channel is communicated with the cavity, one side of the cavity is provided with an oil outlet communicated with the interior of the cavity, the sealing opening is in a big-end-up circular truncated cone shape, the metal sealing plug and the sealing opening are matched and plugged, and the bottom end of the bolt base is in threaded connection with an oil drainage screw. The top end of the oil drainage screw rod sequentially penetrates out of the cavity, the oil drainage channel and the sealing opening to the position above the bolt base, a metal sealing plug is fixedly installed at the top end of the oil drainage screw rod, a plate body is slidably connected to the interior of the cavity, the plate body is in a disc shape and fixedly connected with the oil drainage screw rod, and a sealing gasket is fixedly installed at the bottom end of the plate body. According to the utility model, durable and reliable disassembly and oil drainage can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an automobile engine oil drain bolt device. Background Art

[0002] The drain bolt is a fitting at the drain port of the oil tank of a car. Waste oil can be discharged by unscrewing the drain bolt so that new oil can be added to maintain the car. Currently, most drain bolts are disassembled by screwing on a thread. After disassembly, the oil is discharged. Since the oil contains impurities, the impurities are easily retained in the inner wall threads of the drain port of the oil tank. When the drain bolt is screwed on again for installation, it is easy to get stuck. Currently, there is no reliable technical solution. Utility Model Content

[0003] The purpose of the present application is to provide an automobile oil drain bolt device to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an automobile oil drain bolt device, comprising a bolt seat, a drain screw and a metal sealing plug, the bolt seat being installed at the oil drain port of the oil tank, a cavity being provided inside the bottom end of the bolt seat, an oil drain passage being provided on the bolt seat above the cavity, a sealing port being provided at the top end of the oil drain passage, one end of the oil drain passage being communicated with the sealing port, the other end of the oil drain passage being communicated with the cavity, an oil outlet being communicated with the interior of the cavity being provided on one side of the cavity, the sealing port being in the shape of a truncated cone with a larger top and a smaller bottom, the metal sealing plug being adapted to fit the sealing port, an oil drain screw being threadedly connected at the bottom end of the bolt seat, the top end of the oil drain screw sequentially passing through the cavity, the oil drain passage and the sealing port to the top of the bolt seat, the metal sealing plug being fixedly installed at the top end of the oil drain screw, a plate body being slidably connected to the interior of the cavity, the plate body being in the shape of a disc and being fixedly connected to the oil drain screw, and a sealing pad being fixedly installed at the bottom end of the plate body.

[0005] Preferably, a male thread is provided on the outer wall of the top end of the bolt seat, and the male thread is threadedly connected with the female thread on the inner wall of the oil drain port of the oil tank in an adaptable manner.

[0006] Preferably, a hand wheel located below the bolt seat is fixedly mounted on the bottom end of the oil drain screw.

[0007] Preferably, the outer wall of the oil outlet is provided with a protrusion arranged around the axis thereof.

[0008] Preferably, the outer periphery of the sealing gasket and the inner wall of the cavity are in interference fit.

[0009] Preferably, the inner wall of the sealing port is provided with an elastic sealing strip fixed around its axis, and the outer side wall of the metal sealing plug is provided with an annular recess engaged with the elastic sealing strip.

[0010] In summary, the technical effects and advantages of the utility model are:

[0011] In the utility model, the oil drain screw is rotated to drive the metal sealing plug to move upward so that the metal sealing plug is separated from the sealing port, so that the engine oil at the oil drain port of the oil tank will be discharged along the sealing port, the oil drain channel, the cavity and the oil outlet, wherein the sealing gasket blocks the influence of engine oil impurities on the threads of the oil drain screw, thereby realizing long-term oil draining and disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a structural schematic diagram of an automobile oil drain bolt device in an embodiment of the present application;

[0014] Figure 2 This is a schematic diagram of the top view of the bolt seat of an automobile oil drain bolt device in an embodiment of the present application.

[0015] In the figure: 1. oil tank drain port; 2. bolt seat; 3. drain screw; 4. cavity; 5. drain channel; 6. sealing port; 7. metal sealing plug; 8. annular recess; 9. elastic sealing strip; 10. plate body; 11. sealing gasket; 12. hand wheel; 13. oil outlet; 14. protrusion. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] It should also be noted that the standard parts used in this application document can be purchased from the market, and can be customized according to the description in the specification and drawings. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to the specific circumstances, and in the absence of clear limitations, machines, parts and equipment can all adopt conventional models in the prior art.

[0019] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0020] Example: Reference Figure 1-2The oil drain bolt device of an automobile shown in the figure comprises a bolt seat 2, an oil drain screw 3 and a metal sealing plug 7, wherein the bolt seat 2 is installed at the oil drain port 1 of the oil tank, a cavity 4 is provided inside the bottom end of the bolt seat 2, an oil drain passage 5 is provided above the cavity 4, a sealing port 6 is provided at the top of the oil drain passage 5, one end of the oil drain passage 5 is communicated with the sealing port 6, and the other end of the oil drain passage 5 is communicated with the cavity 4, an oil outlet 13 communicated with the interior of the cavity 4 is provided on one side of the cavity 4, the sealing port 6 is a truncated cone shape with a larger upper portion and a smaller lower portion, the metal sealing plug 7 and the sealing port 6 are adapted to fit together, the oil drain screw 3 is threadedly connected to the bottom end of the bolt seat 2, and the oil drain screw 3 is The top end passes through the cavity, the oil drain channel and the sealing port in sequence to the top of the bolt seat, the top end of the oil drain screw 3 is fixedly installed with the metal sealing plug 7, the interior of the cavity 4 is slidably connected with a plate body 10, the plate body 10 is disc-shaped and fixedly connected to the oil drain screw, and the bottom end of the plate body 10 is fixedly installed with a sealing gasket 11, the bolt seat is threadedly installed on the oil drain port of the oil tank, and it is installed once and does not need to be disassembled later, and the oil drain screw is screwed to drive the metal sealing plug to move upward so that the metal sealing plug is separated from the sealing port, so that the engine oil at the oil drain port of the oil tank will be discharged along the sealing port, the oil drain channel, the cavity and the oil outlet, wherein the sealing gasket blocks the influence of engine oil impurities on the threads of the oil drain screw, thereby realizing long-lasting oil draining and disassembly and assembly.

[0021] By means of the above structure: the outer wall of the top end of the bolt seat 2 is provided with a male thread, and the male thread is threadedly connected with the female thread on the inner wall of the oil drain port 1 of the oil tank in an adaptable manner.

[0022] By means of the above structure: a hand wheel 12 located below the bolt seat 2 is fixedly mounted on the bottom end of the oil drain screw 3, and the rotation of the oil drain screw can be conveniently operated by the hand wheel.

[0023] With the above structure, the outer wall of the oil outlet 13 is provided with a protrusion 14 arranged around the axis thereof, and the protrusion can facilitate maintenance personnel to put on a hose to drain the oil.

[0024] By means of the above structure, the outer periphery of the sealing gasket 11 and the inner wall of the cavity are in interference fit to isolate the oil release impurities.

[0025] By means of the above structure: the inner wall of the sealing port 6 is provided with an elastic sealing strip 9 fixed around its axis, and the outer wall of the metal sealing plug 7 is provided with an annular recess 8 engaged with the elastic sealing strip 9. When sealing, the hand wheel is turned to drive the oil drain screw to rotate, and the oil drain screw drives the metal sealing plug to descend to the sealing port, so that the metal sealing plug is stuck in the annular recess, thereby realizing efficient extrusion sealing.

[0026] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automobile oil drain bolt device, characterized in that: The cam is provided with a sealing port, and one end of the oil drain plug is connected with the sealing port, and the other end of the oil drain plug is connected with the cavity.

2. The automobile oil drain bolt device according to claim 1, characterized in that: The top outer wall of the bolt seat is provided with a male thread, and the male thread is threadedly connected with the female thread on the inner wall of the oil drain port of the oil tank in an adaptable manner.

3. The automobile oil drain bolt device according to claim 1, characterized in that: A hand wheel located below the bolt seat is fixedly mounted on the bottom end of the oil drain screw.

4. The automobile oil drain bolt device according to claim 1, characterized in that: The outer wall of the oil outlet is provided with a protrusion arranged around the axis thereof.

5. The automobile oil drain bolt device according to claim 1, characterized in that: The outer periphery of the sealing gasket and the inner wall of the cavity are in interference fit.

6. The automobile oil drain bolt device according to claim 1, characterized in that: The inner wall of the sealing port is provided with an elastic sealing strip fixed around its axis, and the outer side wall of the metal sealing plug is provided with an annular recess engaged with the elastic sealing strip.

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