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; the check block is arranged on the base in a sliding mode, the check block is provided with a first preset position and a second preset position on the base, when the check block is located at the first preset position, the transparent cover plate can be blocked at the position where the through hole is shielded, and when the check block is located at the second preset position, the transparent cover plate can be blocked at the position where the through hole is shielded. And the transparent cover plate can slide off from the base when the stop block is located at the second preset position. According to the observation window cover plate structure, a worker can observe OT scribed lines on the flywheel more easily, simply and conveniently, the working efficiency is 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 make it easier and more convenient for workers to observe the OT markings on the flywheel, improve work efficiency and reduce the labor intensity of workers.

[0004] According to a first aspect of this utility model, 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 slides with the base; and a stop block slidably disposed on the base, having a first preset position and a second preset position on the base. When the stop block is in the first preset position, it can block the transparent cover plate in a position that obstructs the through hole. When the stop block is in the second preset position, it can slide 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 first 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 first 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 first 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 second slide groove is provided on the base on one side of the opening end of the first slide groove, which slides in cooperation with the stop block. A portion of the length of the second slide groove is within the range of the first slide groove, and another portion of the length of the second slide groove is offset from the first slide groove.

[0009] In some embodiments of this utility model, the second slide groove is connected to the first bottom surface or the second bottom surface, and an operating handle connected to the stop block is provided outside the base.

[0010] In some embodiments of this utility model, the second groove is provided with a stabilizing member 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. A through hole corresponding to the observation window of the flywheel housing is provided on the base, and a transparent cover is slidably installed on the base. A stop block is provided and slidably connected to the base. During normal engine operation, the stop block can slide on the base to a first preset position, stabilizing the transparent cover at the through hole. When it is necessary to observe the OT markings on the flywheel, the operator can directly view them through the transparent cover without disassembly, thus significantly improving work efficiency and reducing the workload of the operator. This makes it easier and more convenient for the operator to observe the OT markings on the flywheel. Furthermore, if the transparent cover becomes dusty and obstructs the view, the operator can slide the stop block from the first preset position to a second preset position, then slide the transparent cover off the base, clean it, reinstall the transparent cover on the base, and then slide the stop block from the second preset position back to the first preset position. The operation is convenient and maintenance is easy. 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 sliding assembly of the transparent cover and the base in this application.

[0018] The labels in the attached diagram represent the following: 1. Base; 11. Through hole; 12. First slide groove; 13. Second slide groove; 14. Engraved line; 2. Transparent cover plate; 3. Stop block; 4. Operating handle; 5. Stabilizer. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] This application discloses an observation window cover structure. For example... Figure 1 and Figure 2 As shown, the observation window cover structure includes a base 1, a transparent cover 2, and a stop 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 3 is slidably disposed on the base 1, and the stop 3 has a first preset position and a second preset position on the base 1. When the stop 3 is in the first preset position, it can block the transparent cover 2 in a position that forms a shield against the through hole 11, and when the stop 3 is in the second preset position, it can slide the transparent cover 2 off the base 1.

[0023] 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 can be slid on the base 1 to be placed in the first preset position, 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.

[0024] In addition, if the transparent cover 2 becomes dusty and obstructs the view, the staff can slide the block 3 from the first preset position to the second preset position, and then slide the transparent cover 2 off the base 1. After cleaning the transparent cover 2, the transparent cover 2 can be reinstalled on the base 1, and then the block 3 can be slid from the second preset position to the first preset position. The operation is convenient and the maintenance efficiency is high.

[0025] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the base 1 is a plate-shaped structure. 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. A through hole 11 is provided on the base 1 along the direction from the first bottom surface to the second bottom surface. A first groove 12 is provided on the side wall of the base 1 along the direction perpendicular to the side wall, which slides and engages with the transparent cover plate 2.

[0026] 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 first sliding groove 12 is opened along the direction perpendicular to the side wall of the base 1, the transparent cover plate 2 can be located at the through hole 11 when it slides into the first sliding groove 12. The structure is simple, the sliding fit is stable and the operation is convenient, and the number of parts is further reduced.

[0027] It should be noted that the span of the first slide groove 12 on the base 1 should appropriately exceed the through hole 11 to ensure that the transparent cover plate 2 that cooperates with the first slide groove 12 can completely cover the through hole 11, so that the transparent cover plate 2 can effectively block the through hole 11 during normal engine operation.

[0028] 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.

[0029] 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 first groove 12 on the base 1.

[0030] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the first slide groove 12 on the base 1 is set 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 set at the open end.

[0031] In this embodiment, the transparent cover plate 2 is installed in the first slide groove 12. One end of the cover plate abuts against the closed end of the first 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.

[0032] In other embodiments of this utility model, the first slide groove 12 on the base 1 along the sliding direction of the transparent cover plate 2 can also be set with openings at both ends, and the stop block 3 is set at the two opening ends respectively, that is, the transparent cover plate 2 is installed in the first slide groove 12, and each end of it is locked and limited by a stop block 3.

[0033] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, a second slide groove 13 is provided on the base 1 on one side of the opening end of the first slide groove 12, which slides in cooperation with the stop block 3. A part of the length of the second slide groove 13 is within the range of the first slide groove 12, and another part of the length of the second slide groove 13 is offset from the first slide groove 12.

[0034] It should be understood that in this embodiment, the first preset position is located on the length of the second slide 13 within the range of the first slide 12, and the second preset position is located on the length of the second slide 13 offset from the first slide 12. By moving the position of the stop block 3 within the second slide 13, the transparent cover plate 2 can 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.

[0035] In some embodiments of this utility model, the shape of the second slide groove 13 along its length direction includes, but is not limited to, straight line, arc, etc. It can be reasonably designed according to the shape of the transparent cover plate 2. It is preferred to adopt a straight line shape to facilitate the sliding of the stop block 3 within it.

[0036] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the second slide groove 13 is connected to the first bottom surface or the second bottom surface, and the base 1 is provided with an operating handle 4 that is connected to the stop block 3.

[0037] It should be noted that 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. That is, the operating handle 4 is set on the side of the base 1 away from the flywheel housing, and the operating handle 4 is fixedly connected to the stop block 3 through the part of the second slide groove 13 that communicates with the outside of the base 1.

[0038] In this embodiment, the stop block 3 can be slid within the second slide groove 13 by operating the handle 4, thereby improving the ease of operation of the stop block 3 and increasing the efficiency of disassembling and assembling the transparent cover plate 2.

[0039] In some embodiments of this utility model, the operating handle 4 can be connected to the stop block 3 by welding, screw fixing or other means, which is not limited here.

[0040] Furthermore, the shape of the operating handle 4 may include, but is not limited to, circular block shape, rectangular block shape, etc., and the operating handle 4 may also be provided with anti-slip stripes and other structures to facilitate manual operation by the staff.

[0041] In some embodiments of this utility model, such as Figure 2 As shown, the second slide groove 13 is provided with a stabilizing member 5 for stabilizing the stop block 3 in the first preset position and the second preset position respectively.

[0042] In this embodiment, the stop block 3 is stabilized in the first preset position or the second preset position in the second slide groove 13 by the stabilizing member 5. In particular, the first preset position 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.

[0043] In some embodiments of this utility model, the stabilizing member 5 and the stop block 3 can be made of materials that can magnetically attract each other. Under the condition that the stop block 3 can slide without obstruction in the second slide groove 13, a stabilizing member 5 is installed in the second slide groove 13 at a first preset position and a second preset position respectively. Through the magnetic attraction between the stop block 3 and the stabilizing member 5, the stop block 3 is stabilized at the first preset position or the 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 stop block 3 and the stabilizing member 5.

[0044] In other embodiments of this utility model, the stop block 3 can also be stabilized at the first preset position and the second preset position by elastic snap-fit, such as by interference fit with a certain elastic deformation, elastic buckle and other structures.

[0045] In some embodiments of this utility model, such as Figure 1 As shown, the base is provided with a scribing line 14, which is located at the through hole.

[0046] In this embodiment, by observing the alignment of the flywheel OT marking with the marking 14 on the base 1 through the transparent cover plate 5, it is easier to adjust valve clearance and other operations.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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); A stop block (3) is slidably disposed on the base (1). The stop block (3) has a first preset position and a second preset position on the base (1). When the stop block (3) is in the first preset position, it can block the transparent cover plate (2) in a position that forms a shield against the through hole (11). When the stop block (3) is in the second preset position, it can slide the transparent cover plate (2) 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 first 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 first chute (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 block (3) is set at the open end.

4. The observation window cover structure according to claim 2, characterized in that, The first 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 the two opening ends respectively.

5. The observation window cover structure according to claim 3 or 4, characterized in that, The base (1) is provided with a second slide groove (13) on one side of the opening end of the first slide groove (12) to slide in cooperation with the stop block (3). A part of the length of the second slide groove (13) is within the range of the first slide groove (12), and another part of the length of the second slide groove (13) is offset from the first slide groove (12).

6. The observation window cover structure according to claim 5, characterized in that, The second slide (13) is connected to the first bottom surface or the second bottom surface, and the base (1) is provided with an operating handle (4) connected to the stop block (3).

7. The observation window cover structure according to claim 5, characterized in that, The second groove (13) is provided with a stabilizing member (5) for stabilizing the stop (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 (14), 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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