Observation window cover plate structure, flywheel casing and engine

Abstract

The utility model relates to an observation window cover plate structure, a flywheel casing and an engine in the technical field of engines, and the observation window cover plate structure comprises a base which is provided with a through hole corresponding to an observation window; the transparent cover plate is in sliding fit with the base; and the stop block is rotationally connected to the base, and the stop block is provided with a first preset position for blocking the transparent cover plate at the through hole to form a shield and a second preset position for enabling the transparent cover plate to slip off from the base. According to the observation window cover plate structure, the observation efficiency of a worker on the OT scribed line on the flywheel can be improved, and the labor intensity of the worker is reduced.

Description

Technical Field

[0001] This application relates to the field of engine technology, and in particular to an observation window cover structure, a flywheel housing, and an engine. Background Technology

[0002] Currently, engine flywheel housings typically have an observation window for viewing the OT (overhead) markings, facilitating operations such as valve clearance adjustment. During normal engine operation, the observation window is covered by a cover plate and secured with bolts to prevent foreign objects from entering the engine. When personnel need to view the OT markings, the bolts are removed and the cover plate is moved; after viewing, the cover plate is then secured back in place with bolts. The existing flywheel housing observation window structure is relatively cumbersome to disassemble and assemble, involves numerous parts, and requires tools, thus increasing the time required and increasing the risk of missing parts. Utility Model Content

[0003] In view of the problems existing in the background art, this application provides an observation window cover structure, a flywheel housing and an engine, which can improve the efficiency of workers in observing the OT markings on the flywheel and reduce the labor intensity of workers.

[0004] According to a first aspect of the present invention, an observation window cover structure is provided, which is installed on the observation window of a flywheel housing. The observation window cover structure includes: a base having a through hole corresponding to the observation window; a transparent cover plate that is slidably engaged with the base; and a stop block rotatably connected to the base. The stop block has a first preset position for blocking the transparent cover plate in a way that obstructs the through hole and a second preset position for sliding the transparent cover plate off the base.

[0005] In some embodiments of this utility model, the base is a plate-shaped structure, the base includes a first bottom surface and a second bottom surface facing each other, and a side wall connecting the first bottom surface and the second bottom surface; the through hole is provided on the base along the direction from the first bottom surface to the second bottom surface, and the side wall of the base is provided with a sliding groove that slides with the transparent cover plate along a direction perpendicular to the side wall.

[0006] In some embodiments of this utility model, the groove on the base is configured with one end open and the other end closed along the sliding direction of the transparent cover plate, and the stop is provided at the open end.

[0007] In some embodiments of this utility model, the groove on the base is configured with openings at both ends along the sliding direction of the transparent cover plate, and the stop block is respectively provided at the two opening ends.

[0008] In some embodiments of this utility model, a rotating shaft is provided on the base near the opening end of the slide groove, the axis of the rotating shaft is arranged along the thickness direction of the base, the stop block is near the side wall of the base and located at the opening end of the slide groove, and the stop block is rotatably connected to the rotating shaft through a connecting arm.

[0009] In some embodiments of this utility model, the connecting arm is provided with a toggle plate.

[0010] In some embodiments of this utility model, a stabilizing member is provided between the connecting arm and the base for stabilizing the stop block at a first preset position and a second preset position, respectively.

[0011] In some embodiments of this utility model, the base is provided with a etched line, which is located at the through hole.

[0012] According to a second aspect of the present invention, a flywheel housing is provided, including the above-described observation window cover structure.

[0013] According to a third aspect of the present invention, an engine is provided, comprising the aforementioned flywheel housing.

[0014] This application provides an observation window cover structure, which is integrally installed on the observation window of the flywheel housing, so that the through hole of the base corresponds to the observation window of the flywheel housing. During normal engine operation, the stop block on the base can be adjusted to a first preset position by rotation, so that the transparent cover is stable at the through hole of the base. When it is necessary to observe the OT mark on the flywheel, the operator can directly view it through the transparent cover without disassembly, thereby greatly improving work efficiency, reducing the labor intensity of the operator, and making it easier and more convenient for the operator to observe the OT mark on the flywheel. Furthermore, if the transparent cover becomes dusty and obstructs the view, the operator can move the stop block from the first preset position to the second preset position by rotation, and then slide the transparent cover off the base. After cleaning the transparent cover, the transparent cover is reinstalled on the base, and the stop block is rotated from the second preset position to the first preset position. The operation is convenient and the maintenance efficiency is high. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the observation window cover plate of this application;

[0017] Figure 2 This is a schematic diagram of the angle of the open portion of the stop in this application;

[0018] Figure 3 This is a schematic diagram of the block being fully opened in this application.

[0019] The labels in the attached diagram represent the following: 1. Base; 11. Through hole; 12. Slide groove; 13. Engraved line; 2. Transparent cover plate; 3. Stop block; 4. Rotating shaft; 5. Connecting arm; 6. Actuating piece. Detailed Implementation

[0020] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0021] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0022] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0023] This application discloses an observation window cover structure. For example... Figures 1-3 As shown, the observation window cover structure includes a base 1, a transparent cover 2, and a stop block 3; wherein, the base 1 has a through hole 11 corresponding to the observation window; the transparent cover 2 is slidably engaged with the base 1; the stop block 3 is rotatably connected to the base 1, and the stop block 3 has a first preset position that blocks the transparent cover 2 in a way that obstructs the through hole 11 and a second preset position that allows the transparent cover 2 to slide off the base 1.

[0024] By using the observation window cover structure in this technical solution, the entire observation window cover structure is installed on the observation window of the flywheel housing, so that the through hole 11 of the base 1 corresponds to the observation window of the flywheel housing. During normal engine operation, the stop block 3 on the base 1 can be adjusted to the first preset position by rotation, so that the transparent cover 2 is stable at the through hole 11 of the base 1. When it is necessary to observe the OT mark on the flywheel, the staff can directly view it through the transparent cover 2 without disassembly and assembly, thereby greatly improving work efficiency, reducing the labor intensity of the staff, and making it easier and more convenient for the staff to observe the OT mark on the flywheel.

[0025] In addition, if the transparent cover 2 becomes dusty and obstructs the view, the staff can rotate the block 3 from the first preset position to the second preset position. Then the transparent cover 2 can be slid off the base 1 and removed. After cleaning the transparent cover 2, the transparent cover 2 can be reinstalled on the base 1, and the block 3 can be rotated from the second preset position to the first preset position. The operation is convenient and the maintenance efficiency is high.

[0026] In some embodiments of this utility model, such as Figure 1 As shown, the base 1 is a plate-shaped structure, and the base 1 includes a first bottom surface and a second bottom surface facing each other, as well as a side wall connecting the first bottom surface and the second bottom surface; the through hole 11 is provided on the base 1 along the direction from the first bottom surface to the second bottom surface, and the side wall of the base 1 is provided with a sliding groove 12 in a direction perpendicular to the side wall, which slides and engages with the transparent cover plate 2.

[0027] In this embodiment, by setting a plate-shaped base 1, a through hole 11 is opened along the thickness direction of the base 1, and a sliding groove 12 is opened along the direction perpendicular to the side wall of the base 1, so that when the transparent cover 2 slides into the sliding groove 12, the transparent cover 2 is simultaneously located at the through hole 11. The structure is simple, the sliding fit is highly stable and the operation is convenient, and the number of parts is further reduced.

[0028] It should be noted that the span of the slide groove 12 on the base 1 should appropriately exceed the through hole 11 to ensure that the transparent cover 2 that cooperates with the slide groove 12 can completely cover the through hole 11, so that the transparent cover 2 can effectively block the through hole 11 during normal engine operation.

[0029] In some embodiments of this utility model, the plate-shaped base 1 includes, but is not limited to, rectangular plates, circular plates, or other polygonal plates, etc., and is not limited thereto. It is preferred to use regular rectangular plates to facilitate processing.

[0030] In some embodiments of this utility model, the shape of the transparent cover plate 2 includes, but is not limited to, a rectangle, a circle, or other polygons, and is not limited here. A regular rectangle is preferred to facilitate the machining of a suitable groove 12 on the base 1.

[0031] In some embodiments of this utility model, such as Figure 1 and Figure 3 As shown, the slide groove 12 on the base 1 is configured with one end open and the other end closed along the sliding direction of the transparent cover plate 2, and the stop block 3 is provided at the open end.

[0032] In this embodiment, the transparent cover plate 2 is installed in the slide groove 12. One end of the cover plate 2 abuts against the closed end of the slide groove 12 to automatically form a limit, and the other end is blocked by the stop block 3, which further reduces the number of parts.

[0033] In other embodiments of this utility model, the slide groove 12 on the base 1 along the sliding direction of the transparent cover plate 2 can also be configured with openings at both ends, and the stop block 3 is respectively provided at the two opening ends, that is, the transparent cover plate 2 is installed in the slide groove 12, and each end of it is locked and limited by a stop block 3.

[0034] In some embodiments of this utility model, such as Figure 1 As shown, a rotating shaft 4 is provided on the base 1 near the opening end of the slide groove 12. The axis of the rotating shaft 4 is set along the thickness direction of the base 1. The stop block 3 is located near the side wall of the base 1 and at the opening end of the slide groove 12. The stop block 3 is rotatably connected to the rotating shaft 4 through a connecting arm 5.

[0035] It should be understood that in this embodiment, the stop block 3 is connected to the rotating shaft 4 on the base 1 via a connecting arm 5 of a certain length. By rotating the connecting arm 5 around the rotating shaft 4 as the axis, the stop block 3 can be moved on the base 1. The position of the stop block 3 at the opening end of the slide groove 12 can be adjusted so that the stop block 3 can be switched between the first preset position and the second preset position, thereby allowing the transparent cover plate 2 to be disassembled and assembled. The structure is simple and the operation is convenient. There is no need to remove the stop block 3 from the base 1, which effectively avoids the loss of parts.

[0036] In some embodiments of this utility model, when the observation window cover structure is installed on the flywheel housing, one of the first and second bottom surfaces of the base 1 will contact the flywheel housing, and the other bottom surface will be away from the surface of the flywheel housing. The connecting arm 5 can be arranged on the side of the base 1 away from the flywheel housing. The stop block 3 and the connecting arm 5 are connected in an L-shape, which ensures that the stop block 3 can press on the end of the transparent cover 2, and also ensures that the connecting arm 5 will not affect the fixation of the base 1 and the flywheel housing.

[0037] Furthermore, the specific position of the rotating shaft 4 on the base 1, the length of the connecting arm 5, and the rotation range of the connecting arm 5 together with the stop block 3 on the rotating shaft 4 are not limited here, and can be reasonably designed as needed, so as to ensure that the stop block 3 rotates to press on the end of the transparent cover plate 2 or to ensure that the stop block 3 rotates outside the path of the transparent cover plate 2 sliding out of the slide groove 12.

[0038] In some embodiments of this utility model, such as Figure 1 As shown, the connecting arm 5 is provided with a toggle piece 6.

[0039] It should be noted that, for ease of operation, the actuating piece 6 can be fixed to the end of the connecting arm 5 away from the rotating shaft 4.

[0040] In this embodiment, the stop block 3 and the connecting arm 5 can be rotated around the pivot 4 by the toggle piece 6, thereby improving the ease of operation of the stop block 3 and increasing the efficiency of disassembling and assembling the transparent cover plate 2.

[0041] In some embodiments of this utility model, the actuating piece 6 can be connected to the connecting arm 5 by welding, integral molding, or other methods, which are not limited here.

[0042] Preferably, the stop block 3, the connecting arm 5, and the actuating piece 6 are integrally formed by machining.

[0043] In some embodiments of this utility model, a stabilizing member (not shown) is provided between the connecting arm 5 and the base 1 for stabilizing the stop block 3 at a first preset position and a second preset position, respectively.

[0044] In this embodiment, the stop block 3 is stabilized in a first preset position or a second preset position by a stabilizing member, especially the first preset position. This can reduce the possibility of the stop block 3 shifting from a specific position during normal engine operation and ensure that the stop block 3 effectively limits the transparent cover plate 2.

[0045] In some embodiments of this utility model, a stabilizing member that can magnetically attract the connecting arm 5 to the base 1 can be embedded in the side of the connecting arm 5 facing the base 1. Through the magnetic attraction between the stabilizing member and the base 1, the connecting arm 5 and the stop block 3 are stabilized in a first preset position or a second preset position, and the stop block 3 is moved away from the first preset position or the second preset position by overcoming the magnetic force of the stabilizing member and the base 1.

[0046] In other embodiments of this utility model, the connecting arm 5 can also be stabilized at the first preset position and the second preset position by elastic snap-fit, such as by the connecting arm 5 making frictional contact with the base 1 through a certain elastic deformation or by setting an elastic buckle between the two.

[0047] In some embodiments of this utility model, such as Figure 1As shown, the base is provided with a etched line 13, which is located at the through hole 11.

[0048] In this embodiment, by observing the alignment of the flywheel OT marking with the marking 13 on the base through the transparent cover plate 2, it is easier to adjust valve clearance and other operations.

[0049] In some embodiments of this utility model, the base 1 can be directly fixed to the flywheel housing by welding to further reduce the number of parts. The base 1 is preferably made of metal, such as steel or aluminum alloy.

[0050] In some embodiments of this utility model, the transparent cover plate 2 includes, but is not limited to, transparent PVC plates or other transparent plastic plates or glass plates.

[0051] This application also discloses a flywheel housing, which includes a flywheel housing body and the aforementioned observation window cover structure. An observation window is provided on the flywheel housing body, and the observation window cover structure is installed at the observation window.

[0052] This application also discloses an engine, which includes an engine body, a flywheel, and the aforementioned flywheel housing, with the flywheel housing covering the outside of the flywheel.

[0053] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An observation window cover structure, installed on the observation window of a flywheel housing, characterized in that, The observation window cover structure includes: The base (1) has a through hole (11) corresponding to the observation window; A transparent cover plate (2) is slidably fitted with the base (1); The stop block (3) is rotatably connected to the base (1). The stop block (3) has a first preset position that blocks the transparent cover plate (2) to form a shield against the through hole (11) and a second preset position that allows the transparent cover plate (2) to slide off the base (1).

2. The observation window cover structure according to claim 1, characterized in that, The base (1) is a plate-shaped structure, and the base (1) includes a first bottom surface and a second bottom surface facing each other, as well as a side wall connecting the first bottom surface and the second bottom surface; The through hole (11) is provided on the base (1) in the direction from the first bottom surface to the second bottom surface, and the side wall of the base (1) is provided with a sliding groove (12) that slides and engages with the transparent cover plate (2) in a direction perpendicular to the side wall.

3. The observation window cover structure according to claim 2, characterized in that, The slide (12) is set on the base (1) with one end open and the other end closed along the sliding direction of the transparent cover plate (2), and the stop (3) is set at the open end.

4. The observation window cover structure according to claim 2, characterized in that, The slide groove (12) is set with two openings on the base (1) along the sliding direction of the transparent cover plate (2), and the stop block (3) is set at each of the two opening ends.

5. The observation window cover structure according to claim 3 or 4, characterized in that, A rotating shaft (4) is provided on the side of the base (1) near the opening end of the slide groove (12). The axis of the rotating shaft (4) is arranged along the thickness direction of the base (1). The stop block (3) is located near the side wall of the base (1) and at the opening end of the slide groove (12). The stop block (3) is rotatably connected to the rotating shaft (4) through a connecting arm (5).

6. The observation window cover structure according to claim 5, characterized in that, The connecting arm (5) is provided with a toggle piece (6).

7. The observation window cover structure according to claim 5, characterized in that, A stabilizing member is provided between the connecting arm (5) and the base (1) to stabilize the stop block (3) at a first preset position and a second preset position, respectively.

8. The observation window cover structure according to any one of claims 1-4, characterized in that, The base (1) is provided with a etched line (13), which is located at the through hole (11).

9. A flywheel housing, characterized in that, Includes the observation window cover structure as described in any one of claims 1-8.

10. An engine, characterized in that, Includes the flywheel housing as described in claim 9.

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