CN210264854U - Linkage oil drain device - Google Patents

Linkage oil drain device Download PDF

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Publication number
CN210264854U
CN210264854U CN201921160404.1U CN201921160404U CN210264854U CN 210264854 U CN210264854 U CN 210264854U CN 201921160404 U CN201921160404 U CN 201921160404U CN 210264854 U CN210264854 U CN 210264854U
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China
Prior art keywords
oil drain
oil
cover plate
pan
hole
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CN201921160404.1U
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Chinese (zh)
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饶鹏
刘成
王静秋
纪东
徐天添
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Dongfeng Motor Corp
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Dongfeng Motor Corp
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Abstract

The utility model discloses a linkage oil drain device, including interior drain pan and outer oil pan, be equipped with respectively on interior drain pan and the outer oil pan and put the oilhole, be equipped with the oil drain plug on outer oil drain hole and the outer oil drain hole outward, still include the oil drain apron, the spring and the interior drain pan elasticity joint that oil drain apron set up through putting the oilhole top in, interior drain pan is equipped with the annular sealed face including will putting oilhole, spring and surround, the oil drain apron forms the oil drain clearance when the initial state and sealed face between and will put the oilhole and open, the oil drain apron is when the oil drain plug compresses tightly and sealed face between sealed cooperation will put the oilhole and close. The middle spring and the limiting reverse buckle are both arranged outside the inner oil discharging hole, so that the space in the inner oil discharging hole is not occupied, and the quick oil discharging linked with the oil discharging plug screw is ensured; the clamping jaw and the limiting reverse buckle are positioned outside the inner oil bottom shell, and the inner oil discharging hole is matched with the oil discharging cover plate through the surrounding annular sealing surface to ensure good sealing performance.

Description

Linkage oil drain device
Technical Field
The utility model relates to an automobile engine specifically indicates a linkage oil drain device of variable oil mass oil pan.
Background
With the stricter and stricter regulations on oil consumption and emission, various automobile enterprises increasingly adopt new technologies on engines to meet the requirements of the regulations. A number of patents mention a variable oil sump to improve the oil consumption of gasoline engines during cold start. The main principle is that when the automobile is started in a cold state, the lubricating system basically only uses the engine oil in the inner oil pan to achieve the effect similar to quick warming, and when the temperature of the engine oil rises to a certain value, all the engine oil in the inner oil pan and the outer oil pan participates in the lubricating circulation again to ensure the endurance reliability of the engine. A variable oil sump as described in patent application CN201910243672.8 adopts the above principle. However, when the variable oil quantity oil pan with the structure is used for engine maintenance, if the conventional oil drain plug structure is adopted for oil drainage, only the engine oil in the outer oil pan can be drained, and the engine oil in the inner oil pan is difficult to drain completely; if the vacuum oil pumping mode is adopted to discharge the engine oil, only the engine oil in the inner oil bottom shell can be pumped out, and the engine oil between the bottom of the inner oil bottom shell and the bottom of the outer oil bottom shell cannot be pumped out completely.
Chinese utility model with publication number CN 207634131U discloses a linkage oil drain structure of double-layer oil pan sets up interior oil pan seal assembly in the interior oil drain hole of inner oil pan, links with the bolt on the outer oil drain hole, but this structure has following defect: the inner bottom oil shell sealing assembly is always positioned in the inner oil release hole, so that the space of the inner oil release hole is occupied, the oil discharge aperture is reduced, and the oil discharge speed is reduced; the inner bottom oil shell sealing component clamping jaw is soaked in the inner oil bottom shell all the time, and the sediment formed by long-term use of the inner oil bottom shell is attached to the clamping jaw, so that the sealing performance of the inner bottom oil shell sealing component is extremely easily influenced.
Therefore, there is a need for a linkage oil drain device having a simple structure, a quick oil drainage of the inner bottom oil casing, and an excellent sealing performance.
Disclosure of Invention
The utility model aims at solving the defects of the prior art and providing a linkage oil drainage device which has simple structure, rapid oil drainage of an inner bottom oil shell and excellent sealing performance.
The technical scheme of the utility model is that: the utility model provides a linkage oil drain device, includes interior drain pan and outer oil pan, be equipped with interior oil drain hole, outer oil drain hole on interior drain pan and the outer oil pan respectively, be equipped with oil drain plug screw on the outer oil drain hole, its characterized in that:
the oil drain cover plate is elastically clamped with the inner oil bottom shell through a spring arranged above the inner oil drain hole, and the inner oil bottom shell is provided with an annular sealing surface which surrounds the inner oil drain hole and the spring;
when the oil drain screw is not contacted with the oil drain cover plate, a gap is formed between the oil drain cover plate and the sealing surface to open the oil drain hole,
and the oil drain plug is in sealing fit with the oil drain cover plate and the sealing surface when pressing the oil drain cover plate inwards to close the oil drain hole.
Preferably, a plurality of limiting reverse buckles are arranged at intervals around the sealing surface, a plurality of clamping jaws are circumferentially arranged on the oil drain cover plate and clamped with the limiting reverse buckles, and the clamping jaws are provided with moving spaces along the axial direction of the spring in the limiting reverse buckles.
Furthermore, the spring is in a compression state between the oil drain cover plate and the inner oil drain pan, and the claw is abutted to the outermost end of the limiting reverse buckle when the oil drain plug is not in contact with the oil drain cover plate.
Preferably, a raised positioning cylinder is arranged inside the sealing surface, positioning grooves are formed in the periphery of the positioning cylinder, a plurality of positioning protrusions are circumferentially arranged on the oil drain cover plate at intervals, one end of the spring is sleeved on the positioning cylinder and enters the positioning grooves, and the other end of the spring is sleeved on the positioning protrusions.
Further, the positioning bulge comprises a fixing part with the outer diameter matched with the spring, and a conical part formed by extending the fixing part towards the inner oil pan and gradually contracting in the radial direction.
Preferably, the oil drain cover plate is provided with a sealing ring corresponding to the sealing surface, the sealing ring is circumferentially provided with a plurality of mounting protrusions, the oil drain cover plate is provided with a plurality of mounting holes, and the mounting protrusions enter the mounting holes to fixedly connect the oil drain cover plate with the sealing ring.
Preferably, the outer oil drain hole is provided with a mounting nut, and the oil drain plug is provided with an oil drain plug sealing ring which is matched and sealed with the mounting nut.
Preferably, the sealing surface is provided on the inner sump boss.
The utility model has the advantages that:
1. the spring and the limiting reverse buckle are arranged outside the inner oil release hole, so that the space in the inner oil release hole is not occupied, and the quick oil release linked with the oil release plug screw is ensured; the clamping jaw and the limiting reverse buckle are located outside the inner oil bottom shell, the inner portion of the inner oil bottom shell is deposited without influencing the matching of the inner oil bottom shell, and the inner oil discharging hole is matched with the oil discharging cover plate through the surrounding annular sealing surface to guarantee good sealing performance of the inner oil discharging hole.
2. The structure is simple, the use is convenient, and when the oil drain plug is unscrewed for oil drain, the engine oil in the inner oil pan and the outer oil pan can be drained and drained completely at the same time; when screwing up the oil drain plug screw, can seal the oil drain hole of inside and outside oil pan simultaneously, avoid the machine oil of inside and outside oil pan to take place the heat exchange near the oil drain hole, influence the machine oil intensification effect of warm-up in-process.
Drawings
FIG. 1 is a part diagram of the present invention
FIG. 2 is a schematic view of an inner oil pan
FIG. 3 is a schematic view of the oil drain cover plate
FIG. 4 is a schematic view of the structure of the mounting hole of the oil drain cover plate
FIG. 5 is a schematic view of a seal ring structure
FIG. 6 is a cross-sectional view of the oil drain cover plate and the inner oil pan
FIG. 7 is a cross-sectional view of the oil drain cover plate and the inner oil pan
Wherein: 1-inner oil pan 2-outer oil pan 3-inner oil drain hole 4-outer oil drain hole 5-oil drain plug 6-oil drain cover plate 7-spring 8-sealing surface 9-spacing reverse 10-claw 41-mounting nut 51-oil drain plug sealing ring 61-positioning projection 61.1-fixing portion 61.2-conical portion 62-sealing ring 63-mounting projection 64-mounting hole 81-positioning cylinder 82-positioning groove.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
As shown in fig. 1-5, the utility model discloses a linkage oil drain device, including interior drain pan 1 and outer oil pan 2, 2 are equipped with respectively on interior drain pan 1 and the outer oil pan and put oilhole 3, be equipped with oil drain plug 5 on outer oil drain hole 4 and the outer oil drain hole 4, still include oil drain apron 6, oil drain apron 6 is through spring 7 and the interior drain pan 1 elastic clamping that puts the oilhole 3 top setting in, interior drain pan 1 surface forms and will put oilhole 3 in, the annular bellying including spring 7 surrounds, the bellying top shape is annular sealed face 8, oil drain plug 5 forms the clearance and will put oilhole 3 and open when not contacting with oil drain apron 6 between oil drain apron 6 and sealed face 8, oil drain plug 5 compresses tightly oil drain apron 6 inwards and seals up between oil drain apron 6 and sealed face 8 and cooperate and will put oilhole 3 and close.
A plurality of limiting reverse buckles 9 are arranged at intervals around the sealing surface 8, a plurality of clamping jaws 10 are circumferentially arranged on the oil drain cover plate 6 and clamped with the limiting reverse buckles 9, and the clamping jaws 10 have axial moving spaces along the springs 7 in the limiting reverse buckles 9. The spring 7 is in a compressed state between the oil drain cover plate 6 and the inner oil bottom shell 1, and the claw 10 is abutted to the outermost end of the limiting reverse buckle 9 when the oil drain plug screw 5 is not in contact with the oil drain cover plate 6 by the spring 7.
In this embodiment, the initial state of the oil drain cover plate 6 is determined when the oil drain plug 5 is not in contact with the oil drain cover plate 6, and the axial distance between the sealing surface 8 and the oil drain cover plate 6 reaches the maximum in the initial state. The three limit reverse buckles 9 are respectively arranged on two sides of the inner oil release hole 3 in the horizontal direction and right above the inner oil release hole.
Sealed 8 inside bellied location cylinder 81 that is equipped with of face sets up constant head tank 82 around the location cylinder 81, is equipped with the protruding 61 in location that a plurality of circumference interval arranged on the drain pan 6, and spring 7 pot head is located on the location cylinder 81 and get into constant head tank 82 in, and another pot head is located on the protruding 61 in location. The positioning boss 61 includes a fixing portion 61.1 having an outer diameter fitted with the spring 7, and a tapered portion 61.2 formed by extending and gradually radially contracting the fixing portion 61.1 toward the inner oil pan 1. The positioning projection 61 with the conical portion 61.2 makes the spring 7 easier to mount.
Be equipped with the sealing washer 62 that corresponds with sealed face 8 on the oil drain cover plate 6, sealing washer 62 circumference is equipped with a plurality of mounting projections 63, is equipped with a plurality of mounting holes 64 on the oil drain cover plate 6, and mounting projections 63 link firmly oil drain cover plate 6 and sealing washer 62 in getting into mounting holes 64, sealing washer 62. The outer oil drain hole 4 is provided with a mounting nut 41, and the oil drain plug 5 is provided with an oil drain plug seal ring 51 which is matched and sealed with the mounting nut 41.
In this embodiment, when the oil drain cover plate 6 is pressed by the oil drain plug 5, the inner side of the oil drain cover plate 6 is under the elastic force of the spring 7, and the outer side of the oil drain cover plate 6 is under the pretightening force of the oil drain plug 5, so that the oil drain cover plate 6 and the sealing ring 62 can move between the end of the limit reverse buckle 9 and the sealing surface 8 under the action of the elastic force of the spring 7 and the pretightening force of the oil drain plug 5.
The utility model discloses a theory of operation does:
as shown in fig. 6, in the initial state, the spring 7 pushes the claw 10 against the outermost end (the lowest end in fig. 6) of the limit reverse buckle 9, at this time, the axial distance between the oil drain cover plate 6 and the sealing surface 8 reaches the maximum, and an oil drain gap is formed between the oil drain cover plate 6 and the sealing surface 8 to open the oil drain hole 3.
As shown in fig. 7, after the oil drainage is finished, the oil drainage plug 5 is screwed down to seal the outer oil drainage hole 4 on the outer oil pan 2; because the oil drain plug screw 5 acts on with the pretension force, compress tightly the oil drain cover plate 6 in the restraint space of spacing back-off 9 to compress the spring 7, the sealing washer 62 that just makes the oil drain cover plate 6 seals up the sealing surface 8 when the oil drain plug screw 5 is twisted in place, prevents that machine oil from flowing into the outer oil pan 2 from the inner oil drain hole 3.

Claims (8)

1. The utility model provides a linkage oil drain device, includes interior oil pan (1) and outer oil pan (2), interior oil pan (1) and outer oil pan go up (2) and are equipped with respectively interior oil drain hole (3), outer oil drain hole (4), be equipped with oil drain plug screw (5), its characterized in that on outer oil drain hole (4):
the oil drain cover plate (6) is elastically clamped with the inner oil bottom shell (1) through a spring (7) arranged above the inner oil drain hole (3), and the inner oil bottom shell (1) is provided with an annular sealing surface (8) which surrounds the inner oil drain hole (3) and the spring (7);
when the oil drain plug screw (5) is not contacted with the oil drain cover plate (6), a gap is formed between the oil drain cover plate (6) and the sealing surface (8) to open the oil drain hole (3),
when the oil drain cover plate (6) is pressed inwards by the oil drain plug screw (5), the oil drain cover plate (6) and the sealing surface (8) are in sealing fit to close the oil drain hole (3).
2. The linked oil drain device according to claim 1, characterized in that: the oil drain cover plate is characterized in that a plurality of limiting reverse buckles (9) are arranged on the periphery of the sealing surface (8) at intervals, a plurality of clamping jaws (10) are circumferentially arranged on the oil drain cover plate (6) and clamped with the limiting reverse buckles (9), and the clamping jaws (10) are provided with axial moving spaces along the springs (7) in the limiting reverse buckles (9).
3. The linked oil drain device according to claim 2, characterized in that: spring (7) are compression state between oil drain apron (6), interior oil pan (1), spring (7) are supported jack catch (10) at the outermost end of spacing back-off (9) when oil drain plug screw (5) do not contact with oil drain apron (6).
4. The linked oil drain device according to claim 1, characterized in that: sealed face (8) inside is equipped with bellied location cylinder (81), set up constant head tank (82) around location cylinder (81), be equipped with protruding (61) of location that a plurality of circumference interval arranged on drain pan (6), spring (7) pot head is located on the location cylinder (81) and is got into constant head tank (82) in, other pot head is located on location arch (61).
5. The linked oil drain device according to claim 4, characterized in that: the positioning bulge (61) comprises a fixing part (61.1) with the outer diameter matched with the spring (7), and a conical part (61.2) formed by extending the fixing part (61.1) to the inner oil pan (1) and gradually contracting in the radial direction.
6. The linked oil drain device according to claim 1, characterized in that: be equipped with sealing washer (62) that correspond with sealed face (8) on oil drain cover plate (6), sealing washer (62) circumference is equipped with a plurality of mounting protrusion (63), be equipped with a plurality of mounting hole (64) on oil drain cover plate (6), mounting protrusion (63) get into in mounting hole (64) with oil drain cover plate (6) and sealing washer (62) link firmly.
7. The linked oil drain device according to claim 1, characterized in that: and the outer oil drain hole (4) is provided with a mounting nut (41), and the oil drain plug seal ring (51) is arranged on the oil drain plug (5) and is matched and sealed with the mounting nut (41).
8. The linked oil drain device according to claim 1, characterized in that: the sealing surface (8) is arranged on the bulge part of the inner oil pan (1).
CN201921160404.1U 2019-07-23 2019-07-23 Linkage oil drain device Active CN210264854U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921160404.1U CN210264854U (en) 2019-07-23 2019-07-23 Linkage oil drain device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921160404.1U CN210264854U (en) 2019-07-23 2019-07-23 Linkage oil drain device

Publications (1)

Publication Number Publication Date
CN210264854U true CN210264854U (en) 2020-04-07

Family

ID=70013985

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921160404.1U Active CN210264854U (en) 2019-07-23 2019-07-23 Linkage oil drain device

Country Status (1)

Country Link
CN (1) CN210264854U (en)

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