A gear cover that is easy to install

Abstract

This utility model relates to the field of engine parts technology, specifically to a gear cover that is easy to install, including a top cover, claws, and a pull rod. The top cover is used to cover the engine housing and correspond to the gear. Two claws are provided, each located on one side of the top cover. Both ends of the claws are connected to the top cover via return springs. Under the action of the return springs, the upper edge of the claw engages with the side wall of the top cover, and the lower edge of the claw engages with the engine housing. The first end of the pull rod is rotatably connected to the middle of the claw. Rotating the second end of the pull rod stretches the return spring, causing the lower edge of the claw to horizontally detach from the engine housing. This utility model requires no external power source and achieves rapid installation solely through mechanical self-tightening.

Description

Technical Field

[0001] This utility model relates to the field of engine parts technology, specifically to a gear cover that is easy to install. Background Technology

[0002] As an important component of the engine housing, the engine gear cover is mainly used to seal the engine chamber, prevent lubricating oil from splashing out, and protect the internal transmission mechanism. Traditional gear covers are mostly fixed with screws, requiring each bolt to be tightened individually during installation, which is cumbersome and inefficient. To solve this problem, improved solutions have emerged in the prior art, such as the utility model patent with authorization announcement number CN217999731U, which discloses a high-strength engine gear cover that can be quickly installed. This cover uses a cylinder-driven telescopic rod to move a pressure plate to snap onto the engine housing, achieving rapid installation.

[0003] However, this quick-installation structure relies on an external air or power supply. The engine compartment is a compact space with a complex environment (high temperature, vibration, oil contamination), and additional pneumatic / electric piping would increase the installation complexity. If the power source fails (such as air leakage or electrical short circuit), the pressure plate may not be able to be securely engaged, affecting the reliability of the gear cover's fixation.

[0004] Therefore, there is an urgent need for a gear cover that can be quickly installed without an external power source and only through mechanical self-tightening, in order to improve environmental adaptability and ease of installation. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a gear cover that is easy to install, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gear cover that is easy to install includes a top cover, claws, and a pull rod. The top cover is used to cover the housing and correspond to the gear. There are two claws, which are respectively located on the outer sides of the top cover. The two ends of the claws are connected to the top cover by return springs. Under the action of the return springs, the upper edge of the claw engages with the side wall of the top cover, and the lower edge of the claw engages with the housing. The first end of the pull rod is rotatably connected to the middle of the claw. Rotating the second end of the pull rod can stretch the return spring, so that the lower edge of the claw is horizontally disengaged from the housing.

[0008] As a further improvement of this utility model, each of the two inner sides of the top cover is provided with a mounting groove.

[0009] As a further embodiment of this utility model: the top cover has card interfaces on both sides and two spring openings located below the card interfaces. The upper edge of the card claw passes through the card interface and extends into the mounting groove. The two reset springs pass through the corresponding spring openings and are connected to the inner wall of the mounting groove.

[0010] As a further improvement of this utility model, the card interface and the spring opening are both strip-shaped and extend circumferentially along the top cover.

[0011] As a further embodiment of this utility model: the axis of the claw is arc-shaped and concentric with the top cover, and the cross-section of the claw is U-shaped with the opening facing the inside of the top cover.

[0012] As a further embodiment of this utility model: the pull rod is horizontally embedded in the claw, and both the inner and outer sides of the pull rod are flush with the claw.

[0013] As a further improvement of this utility model, the second end of the pull rod is provided with a pull ring.

[0014] By adopting the above technical solution, this utility model will have the following beneficial effects:

[0015] The dual claws are located on both sides of the top cover and are connected to the top cover by a return spring. The natural elasticity of the spring allows the upper edge of the claw to engage with the side wall of the top cover and the lower edge to engage with the housing, achieving self-tightening fixation without the need for an external air or electricity source, thus avoiding the risk of power source failure. The pull rod is rotatably connected to the middle of the claw. By pulling, the spring can be stretched to expand or reset the claw, enabling quick installation and disassembly. The operation is simple and convenient.

[0016] Compared with existing technologies that achieve rapid installation through cylinder drive, the overall structure of this utility model relies solely on mechanical elasticity, adapting to complex environments such as high temperature and vibration, thus improving the installation efficiency and environmental adaptability of the gear cover. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0018] Figure 1 This is a perspective view of the gear cover that is easy to install according to an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 Exploded view;

[0020] Figure 3 for Figure 1 A perspective sectional view of the gear cover described in the embodiment, in its installed state;

[0021] Figure 4 for Figure 1 A top view of the gear cover for easy installation as described in the embodiment.

[0022] The correspondence between the labels and component names in the attached figures is as follows:

[0023] 1. Top cover; 11. Mounting slot; 12. Snap-in interface; 13. Spring opening; 2. Snap claw; 21. Return spring; 3. Pull rod; 31. Pull ring; 4. Housing. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figure 1-4 The gear cover provided in this embodiment, which is easy to install, includes a top cover 1, a claw 2, and a pull rod 3. The specific structure and implementation details are as follows:

[0026] The top cover 1 is a circular metal cover (preferably made of Q235 steel) with a central opening, used to cover the top of the engine housing 4 and cover the internal gears. Two mounting slots 11 are symmetrically formed on the inner side of the top cover 1 (the side facing the engine housing 4). These mounting slots 11 are arc-shaped and integrally formed to connect to the inner wall of the top cover 1. Each of the two side walls of the top cover 1 (the left and right sides along the diameter direction) is provided with a set of locking interfaces 12 connecting to the mounting slots 11 and two spring openings 13: the locking interfaces 12 are strip-shaped openings, and the spring openings 13 are strip-shaped holes, both extending circumferentially along the top cover 1. The two spring openings 13 are located below both ends of the locking interfaces 12.

[0027] The device includes two claws 2, located on opposite sides of the top cover 1. Both claws 2 are arc-shaped metal parts (made of 65Mn spring steel), with their axes concentric with the top cover 1 (radius of curvature matching the outer periphery of the housing 4). Their cross-section is U-shaped (opening towards the inside of the top cover 1) to enhance structural strength. A return spring 21 is connected to the inner side of each end of the claw 2, passing through the spring opening 13, with the other end fixedly connected to the inner wall of the mounting groove 11. When the return spring 21 is stretched, the upper edge of the claw 2 (the side closest to the top cover 1) passes through the card interface 12 and partially extends into the mounting groove 11 (approximately 5mm), while the lower edge of the claw 2 (the side closest to the housing 4) adheres to the outer periphery of the housing 4 and overlaps below the outer flange of the housing 4.

[0028] The pull rod 3 is made of stainless steel and is horizontally embedded in the middle of the jaw 2. Both its inner and outer sides are flush with the surface of the jaw 2 to avoid protruding and affecting installation. The first end of the pull rod 3 is rotatably connected to the jaw 2 via a pin. Rotating the second end of the pull rod 3 can stretch the return spring 21, causing the lower edge of the jaw 2 to detach horizontally from the housing 4. The second end of the pull rod 3 is fixedly connected to a pull ring 31 for easy hooking with fingers.

[0029] The workflow of this utility model is as follows:

[0030] 1. Installation Operation: First, manually pull the pull ring 31 of the pull rod 3 outward, causing the pull rod 3 to rotate around the pin. Using the pin as a fulcrum, the lever principle pushes the claw 2 outward to expand (the return spring 21 is stretched and stores energy) until the distance between the lower edges of the two claws 2 is greater than the outer diameter of the housing 4. Next, align the top cover 1 with the top of the housing 4 (ensuring it covers the gears) and slowly press it downward against the top surface of the housing 4. Then, release the pull ring 31 to release the elastic force of the return spring 21, which pulls the claw 2 to retract horizontally inward, so that the upper edge of the claw 2 passes through the locking interface 12, and the lower edge of the claw 2 overlaps below the outer flange of the housing 4, thereby restricting the vertical movement of the top cover 1. After the return spring 21 is balanced, the side wall of the claw 2 adheres to the outer periphery of the top cover 1, and the lower edge of the claw 2 adheres to the outer periphery of the housing 4, which can restrict the left and right movement of the top cover 1, and finally completes the self-tightening fixation.

[0031] 2. Disassembly procedure: Pull lever 3 again. Lever 3 pushes the clip outward, and the lower edge of the clip 2 detaches from the outer edge of the housing 4. Lift the top cover 1 upward to complete disassembly.

[0032] Technical effectiveness verification:

[0033] This invention achieves rapid installation through a mechanical self-tightening structure (reset spring 21 + claw 2), eliminating the need for an external power source and overcoming the shortcomings of existing technologies that rely on pneumatic / electric devices. Testing shows that installation time is reduced from 2-3 minutes for traditional screw fixing to 10-15 seconds; even in non-powered environments (such as field repairs) or high-temperature vibration scenarios (120℃, 50Hz vibration), the claw 2 can still maintain a stable engagement through spring force.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gear cover for easy installation, characterized in that, Includes a top cover (1), a claw (2), and a pull rod (3); The top cover (1) is used to cover the housing (4) and correspond to the gear; The claw (2) is provided in two parts. The two claws (2) are respectively located on the outer sides of the top cover (1). The two ends of the claw (2) are connected to the top cover (1) through the return spring (21). Under the action of the return spring (21), the upper edge of the claw (2) is engaged with the side wall of the top cover (1), and the lower edge of the claw (2) is engaged with the housing (4). The first end of the pull rod (3) is rotatably connected to the middle of the claw (2). Rotating the second end of the pull rod (3) can stretch the reset spring (21), so that the lower edge of the claw (2) is horizontally separated from the housing (4).

2. The conveniently installed gear cover according to claim 1, wherein The top cover (1) has a mounting groove (11) on each of its inner sides.

3. The conveniently installed gear cover according to claim 2, wherein The top cover (1) has card interfaces (12) and two spring openings (13) located below the two ends of the card interfaces (12) on both sides. The upper edge of the claw (2) passes through the card interface (12) and extends into the mounting groove (11). The two reset springs (21) pass through the corresponding spring openings (13) and are connected to the inner wall of the mounting groove (11).

4. The conveniently installed gear cover according to claim 3, wherein The card interface (12) and spring opening (13) are both strip-shaped and extend circumferentially along the top cover (1).

5. The conveniently installed gear cover of claim 1, wherein, The axis of the claw (2) is arc-shaped and concentric with the top cover (1). The cross-section of the claw (2) is U-shaped and the opening faces the inside of the top cover (1).

6. The conveniently installed gear cover of claim 1, wherein, The pull rod (3) is horizontally embedded in the claw (2), and the inner and outer sides of the pull rod (3) are flush with the claw (2).

7. The conveniently installed gear cover of claim 1, wherein, The second end of the pull rod (3) is provided with a pull ring (31).

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