Automobile engine shell die casting

Abstract

The utility model discloses a die casting of an automobile engine shell, which belongs to the technical field of engine shells and comprises an engine bottom shell, a blocking mechanism arranged in the oil discharge pipe and used for blocking the oil discharge pipe, and a blocking and protecting mechanism arranged on the protective plate and used for protecting the oil discharge pipe, and the engine bottom shell is provided with a protective plate and an oil discharge pipe. When oil is discharged, the discharge port of the protective hopper can be connected with an oil guide pipe, the tail end of the protective hopper is connected with a container for receiving oil, the container can be directly placed on the ground, then the pull rod is pulled to drive the protective hopper to descend, and the oil discharge pipe can be opened by rotating the protective hopper after the protective hopper descends to the bottom. At the moment, oil in the engine bottom shell can flow into the protection hopper through the oil drainage pipe and the flow guide sleeve and then flows out through the discharging port of the protection hopper and the oil guide pipe, oil drainage operation is completed, the hands of an operator do not need to directly touch the oil outlet in the oil drainage process, and therefore the oil can be prevented from falling on the hands during oil drainage; the container and the wrench do not need to be held simultaneously for operation, and the oil drainage process is simple and fast.

Description

A die-cast part for automobile engine housing Technical Field

[0001] This utility model relates to the field of engine housing technology, specifically to a die-cast part for an automobile engine housing. Background Technology

[0002] The engine oil pan, also known as the die-cast oil pan, is a large, basin-shaped container located at the bottom of the engine. Its main function is to store engine oil and seal the crankcase, ensuring that the oil circulates inside the engine and provides necessary lubrication and cooling. Old engine oil will gradually deteriorate during use, and its lubrication, cleaning, and cooling performance will all decrease. The old engine oil in the engine can be replaced by draining the oil.

[0003] Chinese Patent Publication No. CN222208042U discloses a die-cast automotive engine housing, including an oil pan body and a drain plug located at the bottom of the oil pan body. A protective plate is movably attached to the bottom of the oil pan body. Fixing bolts are movably installed on both the front and rear sides of the protective plate, penetrating the protective plate and fixedly connected to the interior of the oil pan body. Bolt covers corresponding to the drain plug positions are movably installed at the bottom of the fixing bolts. This invention, by providing an external protective plate for the oil pan body and installing it at the bottom of the oil pan body using fixing bolts, and by using a mesh-like internal structure for the protective plate to block stones and debris from the road surface, preventing impact damage to the oil pan body, while also ensuring air circulation between the oil pan body and the outside through the internal mesh, thereby improving the heat dissipation effect of the oil pan body.

[0004] In the aforementioned prior art, the bolt guard can protect the drain bolt under the engine block, thus providing protection. The drain bolt can be used to seal the drain port and prevent oil leakage from the engine block. However, when draining oil, the drain port is blocked by the bolt and cannot be directly connected to the drain pipe. It is necessary to use a wrench and a container to unscrew the bolt and collect the oil, which is quite cumbersome. Furthermore, manually unscrewing the drain bolt can easily cause oil to fall onto your hands. Summary of the Invention

[0005] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a die-cast automotive engine housing to solve the problem in the background art where the oil drain port of the automotive engine bottom is blocked by bolts, making it impossible to directly connect to the drain pipe and resulting in a cumbersome operation when draining oil.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A die-cast automotive engine housing, comprising:

[0008] Engine base, wherein a protective plate and a drain pipe are provided on the engine base, the drain pipe penetrating the protective plate, and further includes:

[0009] A plugging mechanism is arranged inside the drain pipe for plugging the drain pipe. The plugging mechanism includes a connecting frame, a plug block, a flow guide sleeve, and a threaded collar. The connecting frame is arranged inside the drain pipe, the plug block is arranged on one side of the connecting frame, the flow guide sleeve is movably sleeved on the plug block and movably installed inside the drain pipe, and the threaded collar is fixedly sleeved on the flow guide sleeve and threadedly installed inside the threaded groove. The inner wall of the drain pipe is provided with a threaded groove.

[0010] A protective mechanism, arranged on a protective plate, is used to protect the drain pipe. The protective mechanism includes a protective hopper, a connecting rod, a sealing plate, a pull rod, and a linkage assembly. The protective hopper wraps around the drain pipe and is arranged below the protective plate. The connecting rod is arranged below the sealing block. The sealing plate is arranged at one end of the connecting rod and contacts the inner wall of the protective hopper. The pull rod is arranged on the outer surface of the protective hopper. The linkage assembly connects the protective hopper and the guide sleeve.

[0011] A limiting mechanism is arranged on the guard structure to limit the position of the guard structure. The limiting mechanism includes a limiting collar, a movable ring, a reset component and a rotation limiting component. The limiting collar is arranged below the guard plate. The movable ring is fixedly sleeved on the guard bucket and movably installed inside the limiting collar. The reset component is used to drive the movable ring to reset.

[0012] Preferably, the linkage component includes:

[0013] The linkage guide rod is arranged on the inner wall of the protective bucket;

[0014] The linkage sliding hole is opened inside the flow guide sleeve, and the linkage guide rod is slidably installed in the linkage sliding hole.

[0015] Preferably, the reset component includes:

[0016] A spring is movably fitted onto the protective bucket. One end of the spring is positioned on the inner wall of the limiting collar, while the other end of the spring contacts one side of the movable collar.

[0017] Preferably, the rotation limiting component includes:

[0018] The inner limiting ring is located below the protective plate;

[0019] A limiting groove is formed on the surface of the inner limiting ring;

[0020] An annular groove is formed on the surface of the inner ring of the limiting ring and is connected to the limiting groove;

[0021] An arc-shaped limiting strip is arranged on the inner wall of the protective bucket and is adapted to the annular groove. The arc-shaped limiting strip is movably installed in the limiting groove.

[0022] The beneficial effects of this utility model are as follows:

[0023] This invention, through the setting of a protective bucket and a sealing plate, can protect the drain pipe from damage caused by flying debris. When it is necessary to open the drain pipe to drain oil, the outlet of the protective bucket can be connected to an oil guide pipe and the end can be connected to a container to collect the oil. The container can be placed directly on the ground. Then, pull the lever to lower the protective bucket. After it has descended to the bottom, rotating the protective bucket will open the drain pipe. At this time, the oil in the engine casing can flow into the protective bucket through the drain pipe and the guide sleeve, and then flow out through the outlet of the protective bucket and the oil guide pipe to complete the drain operation. During the drain process, the operator's hands do not need to directly touch the outlet, thus avoiding oil from falling on their hands. Furthermore, there is no need to hold a container and a wrench at the same time, making the drain process simple and quick.

[0024] This invention, through the cooperation of the arc-shaped limiting strip and the limiting groove, can limit the angle of the protective bucket, preventing the protective bucket from loosening and rotating during the protection process, thus opening the guide sleeve. Under the elastic force of the spring, it can ensure that the arc-shaped limiting strip is always in the limiting groove under normal conditions, improving the stability of the protective bucket. When it is necessary to rotate and adjust the protective bucket, simply pull the protective bucket down to move the arc-shaped limiting strip into the annular groove, and then rotate the protective bucket to perform the oil discharge operation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 is a structural schematic diagram of a die-cast automotive engine housing provided in an embodiment of this utility model;

[0027] Figure 2 is a schematic diagram of the drain pipe structure of a die-cast automotive engine housing provided in an embodiment of the present invention;

[0028] Figure 3 is a schematic cross-sectional view of the protective bucket structure of a die-cast automotive engine housing provided in an embodiment of this utility model;

[0029] Figure 4 is a schematic diagram of the unfolded cross-sectional structure of the protective bucket of a die-cast automotive engine housing provided in an embodiment of the present invention;

[0030] Figure 5 is a schematic diagram of the structure at point A in Figure 4;

[0031] Figure 6 is a schematic diagram of the limiting inner ring structure of a die-cast part for an automobile engine housing provided in an embodiment of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Engine bottom casing; 101. Protective plate; 102. Drain pipe; 2. Connecting bracket; 201. Plug; 202. Guide sleeve; 203. Threaded groove; 204. Threaded collar; 3. Protective bucket; 301. Connecting rod; 302. Sealing plate; 303. Linkage guide rod; 304. Linkage sliding hole; 305. Pull rod; 4. Limiting collar; 401. Moving ring; 402. Spring; 403. Limiting inner ring; 404. Limiting groove; 405. Annular groove; 406. Arc-shaped limiting strip. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1:

[0036] As shown in Figures 1 to 6, this utility model provides a die-cast part for an automobile engine housing, including: an engine bottom shell 1, a protective plate 101 and an oil drain pipe 102 provided on the engine bottom shell 1, and a sealing mechanism arranged inside the oil drain pipe 102 for sealing the oil drain pipe 102, and a protective mechanism arranged on the protective plate 101 for protecting the oil drain pipe 102.

[0037] The sealing mechanism includes a connecting frame 2 arranged inside the drain pipe 102, a blocking block 201 arranged on one side of the connecting frame 2, and a guide sleeve 202 movably installed inside the drain pipe 102 and movably sleeved on the blocking block 201 to block the drain pipe 102. The blocking block 201 can block the inner hole of the guide sleeve 202. The inner hole of the drain pipe 102 can be blocked by the cooperation between the blocking block 201 and the guide sleeve 202.

[0038] The sealing mechanism also includes a threaded groove 203 inside the drain pipe 102 and a threaded collar 204 fixedly sleeved on the guide sleeve 202. The threaded collar 204 is threaded inside the threaded groove 203. When the guide sleeve 202 rotates, it drives the threaded collar 204 to rotate. When the threaded collar 204 rotates, it can move through the threaded engagement with the threaded groove 203, thereby driving the guide sleeve 202 to move down and disengage from the block 201, so that the guide sleeve 202 is connected to the drain pipe 102.

[0039] The protective mechanism includes a protective bucket 3 arranged below the protective plate 101 and surrounding the drain pipe 102 for protecting the drain pipe 102; a connecting rod 301 arranged below the plug 201; a sealing plate 302 arranged at one end of the connecting rod 301 and in contact with the inner wall of the protective bucket 3 for sealing the protective bucket 3; a pull rod 305 arranged on the outer surface of the protective bucket 3; and a linkage component arranged on the protective bucket 3 and the guide sleeve 202 for making the guide sleeve 202 rotate with the protective bucket 3. Under normal conditions, the protective bucket 3 can protect the drain pipe 102 by cooperating with the sealing plate 302 to prevent splashed gravel from hitting the drain pipe 102. By pulling or rotating the pull rod 305, the protective bucket 3 can be moved accordingly.

[0040] Specifically, the linkage component includes a linkage guide rod 303 arranged on the inner wall of the protective bucket 3 and a linkage sliding hole 304 opened inside the flow guide sleeve 202. The linkage guide rod 303 is slidably installed in the linkage sliding hole 304. By pulling down the protective bucket 3, the linkage guide rod 303 can be driven to slide in the linkage sliding hole 304 inside the flow guide sleeve 202. When the protective bucket 3 is rotated, it can drive the flow guide sleeve 202 to rotate through the cooperation of the linkage guide rod 303 and the linkage sliding hole 304.

[0041] Example 2:

[0042] Based on Example 1, in order to prevent the protective bucket 3 from coming loose from the oil drain pipe 102 during the protection process, a limiting mechanism for restricting the position of the protection mechanism is arranged on the protection structure.

[0043] The limiting mechanism includes a limiting collar 4 arranged below the protective plate 101, a movable ring 401 fixedly sleeved on the protective bucket 3, the movable ring 401 being movably installed inside the limiting collar 4, a reset component arranged on the movable ring 401 for resetting by moving the movable ring 401, and a rotation limiting component arranged on the protective bucket 3 for limiting the rotation of the protective bucket 3. When the protective bucket 3 moves, it will cause the movable ring 401 to slide inside the limiting collar 4. The arrangement of the movable ring 401 and the limiting collar 4 can prevent the protective bucket 3 from detaching from below the protective plate 101.

[0044] Specifically, the reset assembly includes a spring 402 movably sleeved on the protective bucket 3. One end of the spring 402 is arranged on the inner wall of the limiting collar 4, and the other end of the spring 402 is in contact with one side of the movable ring 401. When the protective bucket 3 descends, it will drive the movable ring 401 to compress the spring 402. When the protective bucket 3 is released, the spring 402 will push the movable ring 401 and the protective bucket 3 to move and reset.

[0045] Specifically, the rotation limiting assembly includes a limiting inner ring 403 arranged below the protective plate 101, a limiting groove 404 formed on the surface of the limiting inner ring 403, an annular groove 405 formed on the surface of the limiting inner ring 403 and connected to the limiting groove 404, and an arc-shaped limiting strip 406 arranged on the inner wall of the protective bucket 3 and adapted to the annular groove 405. The arc-shaped limiting strip 406 is movably installed in the limiting groove 404. When the arc-shaped limiting strip 406 is stuck in the limiting groove 404, it can limit the angle of the protective bucket 3. At this time, the protective bucket 3 cannot be rotated, thus preventing the protective bucket 3 from loosening and rotating. When the arc-shaped limiting strip 406 moves into the annular groove 405, the protective bucket 3 can be rotated.

[0046] Working principle: The protective bucket 3, the limiting collar 4, and the limiting inner ring 403 protect the area around the oil drain pipe 102, preventing splashed stones from hitting and damaging it. When it is necessary to open the oil drain pipe 102 to drain oil, the pull rod 305 can be pulled down first, causing the pull rod 305 to move the protective bucket 3, disengaging it from the sealing plate 302 and opening the outlet of the protective bucket 3. The drain pipe can be connected to the outlet of the protective bucket 3. The moving protective bucket 3 can drive the linkage guide rod 303 to slide in the linkage sliding hole 304 inside the guide sleeve 202. At the same time, the protective bucket 3 will drive the movable ring 401 to slide inside the limiting collar 4 and compress the spring 402. The continuously moving protective bucket 3 can drive the arc-shaped limiting strip 406 to slide in the limiting groove 404, so that the arc-shaped limiting strip 406 moves out of the limiting groove 404. 04 Move to the annular groove 405. At this time, the angle restriction on the protective bucket 3 can be released. Then, rotate the pull rod 305 to drive the protective bucket 3 to rotate. When the protective bucket 3 rotates, it can drive the arc-shaped limit strip 406 to rotate in the annular groove 405. At the same time, the rotating protective bucket 3 will drive the guide sleeve 202 to rotate through the cooperation of the linkage guide rod 303 and the linkage sliding hole 304. This will cause the guide sleeve 202 to drive the threaded collar 204 to rotate. When the threaded collar 204 rotates, it can move through the threaded cooperation with the threaded sliding groove 203. This will cause the threaded collar 204 to drive the guide sleeve 202 to move and descend, so that the guide sleeve 202 is separated from the block 201 and finally reaches the state shown in Figure 3. At this time, the oil in the engine bottom case 1 can flow into the protective bucket 3 through the oil drain pipe 102 and the guide sleeve 202, and then flow out through the drain pipe of the discharge port of the protective bucket 3.

[0047] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A die-cast automotive engine housing, comprising an engine base (1), wherein a protective plate (101) and an oil drain pipe (102) are disposed on the engine base (1), the oil drain pipe (102) penetrating the protective plate (101), characterized in that, Also includes: A sealing mechanism is arranged inside the drain pipe (102) for sealing the drain pipe (102). The sealing mechanism includes a connecting frame (2), a plug (201), a flow guide sleeve (202), and a threaded collar (204). The connecting frame (2) is arranged inside the drain pipe (102), the plug (201) is arranged on one side of the connecting frame (2), the flow guide sleeve (202) is movably sleeved on the plug (201) and movably installed inside the drain pipe (102), and the threaded collar (204) is fixedly sleeved on the flow guide sleeve (202) and threadedly installed inside the threaded groove (203). The inner wall of the drain pipe (102) is provided with a threaded groove (203). A protective mechanism is arranged on the protective plate (101) for protecting the drain pipe (102). The protective mechanism includes a protective bucket (3), a connecting rod (301), a sealing plate (302), and a pull rod. (305) and linkage components, the protective bucket (3) is wrapped around the oil drain pipe (102) and arranged below the protective plate (101), the connecting rod (301) is arranged below the block (201), the sealing plate (302) is arranged at one end of the connecting rod (301) and in contact with the inner wall of the protective bucket (3), the pull rod (305) is arranged on the outer surface of the protective bucket (3), and the linkage components connect the protective bucket (3) and the guide sleeve (202); the limiting mechanism is arranged on the guard structure and is used to limit the position of the guard mechanism. The limiting mechanism includes a limiting collar (4), a movable ring (401), a reset component and a rotation limiting component. The limiting collar (4) is arranged below the protective plate (101), the movable ring (401) is fixedly sleeved on the protective bucket (3) and movably installed in the limiting collar (4), and the reset component is used to drive the movable ring (401) to reset.

2. The die-cast part for an automobile engine housing as described in claim 1, characterized in that, The linkage component includes: a linkage guide rod (303) arranged on the inner wall of the protective bucket (3); and a linkage sliding hole (304) opened inside the guide sleeve (202), wherein the linkage guide rod (303) is slidably installed in the linkage sliding hole (304).

3. The die-cast part for an automobile engine housing as described in claim 1, characterized in that, The reset assembly includes a spring (402) which is movably sleeved on the protective bucket (3). One end of the spring (402) is arranged on the inner wall of the limiting collar (4), and the other end of the spring (402) is in contact with one side of the movable ring (401).

4. The die-cast part for an automobile engine housing as described in claim 1, characterized in that, The rotation limiting assembly includes: a limiting inner ring (403) arranged below the protective plate (101); a limiting groove (404) formed on the surface of the limiting inner ring (403); an annular groove (405) formed on the surface of the limiting inner ring (403) and connected to the limiting groove (404); and an arc-shaped limiting strip (406) arranged on the inner wall of the protective bucket (3) and adapted to the annular groove (405), wherein the arc-shaped limiting strip (406) is movably installed in the limiting groove (404).

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