Adjustable overhead camshaft valve lock deactivation tooling

Abstract

This utility model discloses an adjustable overhead camshaft valve lock disassembly fixture, relating to the field of automotive engine repair tool technology. The utility model includes: a retaining ring with its bottom surface for abutting against the upper seat of the valve spring; a force-applying mechanism comprising a support plate positioned directly above the retaining ring, with a gap between the support plate and the retaining ring serving as a receiving space; and a part-removing mechanism comprising a support rod positioned within the receiving space, a limiting slider slidably mounted on the support rod, and a part-removing block mounted on the limiting slider directly above the retaining ring. This solves the problem of damage to valve springs, valves, and camshaft components caused by the lack of dedicated tooling during the disassembly of the valve lock of an overhead camshaft engine.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive engine repair tools, specifically, it is an adjustable overhead camshaft valve lock disassembly tool. Background Technology

[0002] In the structure of a car engine, the overhead camshaft is one of the most important components. It precisely controls the opening and closing of the valves, directly affecting the engine's power performance and fuel economy. The overhead camshaft contacts the valves via hydraulically controlled rollers, and the valves are secured to the engine cylinder head by locking plates.

[0003] During engine repair or assembly, it is often necessary to disassemble the locking mechanism of an overhead camshaft engine. Currently, the industry commonly uses traditional manual disassembly methods, where operators use screwdrivers, pry bars, and other tools to pry or tap the locking mechanism to remove it. However, this traditional method has several drawbacks: Firstly, due to the lack of specialized positioning mechanisms, tools are prone to slipping during operation, increasing the operator's workload and reducing disassembly efficiency. Secondly, the contact area between screwdrivers, pry bars, and other tools and the locking mechanism is small, which can easily cause valve deformation and damage during force application, and may even scratch the camshaft surface, affecting the camshaft's precision and service life. Furthermore, traditional disassembly methods require a high level of experience and skill from the operator, and improper operation may lead to safety accidents.

[0004] To address the aforementioned issues, the development of a high-profile camshaft lock armor disassembly tool that can accurately locate and operate is of great significance for improving engine repair and assembly quality, reducing maintenance costs, and analyzing and rectifying after-sales problems. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable overhead camshaft valve lock disassembly tool to solve the problem that the valve springs, valves and camshafts are damaged due to the lack of a dedicated tool during the disassembly process of the valve lock of an overhead camshaft engine.

[0006] To solve the above problems, the present invention adopts the following technical means: An adjustable overhead camshaft valve lock armor removal tool includes: The bottom surface of the abutment ring is used to abut against the upper seat of the valve spring. The force-applying mechanism is constructed with a bearing plate located directly above the abutting ring, and a gap is provided between the bearing plate and the abutting ring to serve as a receiving space; The retrieval mechanism is constructed with a support rod disposed in the receiving space, a limiting slider is slidably disposed on the support rod, and a retrieval block is installed on the limiting slider directly above the abutment ring.

[0007] Preferably, there are two support rods, which are symmetrically arranged about the axis of the abutment ring. Each support rod is slidably mounted with a limiting slider, and the two sides of the picking block are respectively connected to the two limiting sliders.

[0008] Furthermore, the component removal block is made of magnetic material.

[0009] Furthermore, a screw locking device is installed on the limiting slider, and the locking end of the screw locking device passes through the limiting slider and abuts against the support rod.

[0010] Furthermore, a vertical connecting rod is installed on the top surface of the bearing plate, and a horizontal pressing rod is installed on the top surface of the connecting rod.

[0011] Furthermore, the middle part of the pressure rod is connected to the top of the connecting rod, and hand grips are installed at both ends of the pressure rod.

[0012] Furthermore, the support rod is provided with a scale.

[0013] This utility model has the following beneficial effects during use: When disassembling the valve lock armor of the overhead camshaft, first, the abutment ring abuts against the upper seat of the valve spring. Adjusting the position of the limit slider adjusts the distance between the take-up block and the abutment ring, thus adapting to the valve lengths of different engine models. After assembly, the downward force application mechanism compresses the valve spring, causing the valve stem to pass upward through the inner ring of the abutment ring. The valve lock armor is released, detaches upward, and is captured by the take-up block. After collection, the force is released, the valve spring rebounds, allowing the valve lock armor to be removed along with the take-up block. Therefore, when using the tooling involved in this application to disassemble the valve lock armor, the positioning is precise and reliable, the operation is simple and labor-saving, the structural design is reasonable, the components fit precisely, and it is easy to use, making it suitable for widespread application in automotive engine repair. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the assembly structure of the present invention at the valve spring position.

[0016] Among them, 1-abutment ring, 2-bearing plate, 3-accommodating space, 4-support rod, 5-limiting slider, 6-picking block, 7-connecting rod, 8-pressing rod, and 9-hand grip. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please refer to Figure 1 and Figure 2 As shown, an adjustable overhead camshaft valve lock armor removal tool includes: Abutment ring 1, the bottom surface of which is used to abut against the upper seat of the valve spring; The force-applying mechanism is constructed with a bearing plate 2 located directly above the abutting ring 1, and a gap is provided between the bearing plate 2 and the abutting ring 1 to serve as a receiving space 3; The retrieval mechanism is constructed with a support rod 4 located in the receiving space 3. A limiting slider 5 is slidably mounted on the support rod 4, and a retrieval block 6 is installed on the limiting slider 5 directly above the abutment ring 1.

[0024] Thus, when disassembling the overhead camshaft valve lock armor, the abutment ring 1 is first abutted against the upper seat of the valve spring. The position of the limiting slider 5 is adjusted, thereby adjusting the distance between the take-up block 6 and the abutment ring 1 to accommodate the valve lengths of different engine models. After assembly, the downward force application mechanism is pressed down, compressing the valve spring. The valve stem passes upward through the inner ring of the abutment ring 1, releasing the valve lock armor. The valve lock armor then detaches upward and is captured by the take-up block 6. After collection, the force application is released, and the valve spring rebounds, allowing the valve lock armor to be removed along with the take-up block 6. Therefore, when using the tooling involved in this application to disassemble the valve lock armor, the positioning is precise and reliable, the operation is simple and labor-saving, the structural design is reasonable, the components fit precisely, and it is easy to use, making it suitable for widespread application in automotive engine repair.

[0025] Specifically, in order to make the adjustment of the part-removing block 6 more stable and to ensure that the part-removing block 6 maintains good stability after abutting with the valve lock armor, there are two support rods 4, which are symmetrically arranged about the axis of the abutting ring 1. Each support rod 4 is slidably mounted with a limiting slider 5, and the two sides of the part-removing block 6 are respectively connected to the two limiting sliders 5.

[0026] Furthermore, the part-removing block 6 is made of magnetic material.

[0027] Furthermore, a screw locking device is installed on the limiting slider 5, and the locking end of the screw locking device passes through the limiting slider 5 and abuts against the support rod 4.

[0028] This allows for easy adjustment of the height of the pick-up block 6 and subsequent locking of its position.

[0029] Furthermore, a vertical connecting rod 7 is installed on the top surface of the bearing plate 2, and a horizontal pressing rod 8 is installed on the top surface of the connecting rod 7.

[0030] Furthermore, the middle part of the pressing rod 8 is connected to the top end of the connecting rod 7, and the two ends of the pressing rod 8 are equipped with hand grips 9.

[0031] Meanwhile, the support rod 4 is equipped with a scale.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable overhead camshaft valve lock disassembly fixture, characterized in that, include: The bottom surface of the abutment ring (1) is used to abut against the upper seat of the valve spring; The force-applying mechanism is constructed with a bearing plate (2) located directly above the abutting ring (1), and a gap is provided between the bearing plate (2) and the abutting ring (1) to serve as a receiving space (3). The part-retrieving mechanism is constructed with a support rod (4) located in the receiving space (3), a limiting slider (5) is slidably provided on the support rod (4), and a part-retrieving block (6) is installed on the limiting slider (5) directly above the abutment ring (1).

2. The adjustable overhead camshaft valve lock disassembly fixture according to claim 1, characterized in that, There are two support rods (4), which are symmetrically arranged about the axis of the abutment ring (1). Each support rod (4) is slidably mounted with a limiting slider (5). The two sides of the take-up block (6) are respectively connected to the two limiting sliders (5).

3. The adjustable overhead camshaft valve lock disassembly fixture according to claim 1, characterized in that, The part-removing block (6) is made of magnetic material.

4. The adjustable overhead camshaft valve lock disassembly fixture according to claim 1, characterized in that, A screw locking device is installed on the limiting slider (5), and the locking end of the screw locking device passes through the limiting slider (5) and abuts against the support rod (4).

5. The adjustable overhead camshaft valve lock disassembly fixture according to claim 1, characterized in that, A vertical connecting rod (7) is installed on the top surface of the bearing plate (2), and a horizontal pressing rod (8) is installed on the top surface of the connecting rod (7).

6. The adjustable overhead camshaft valve lock disassembly fixture according to claim 5, characterized in that, The middle part of the pressing rod (8) is connected to the top of the connecting rod (7), and the two ends of the pressing rod (8) are equipped with hand grips (9).

7. The adjustable overhead camshaft valve lock disassembly fixture according to any one of claims 1 to 6, characterized in that, The support rod (4) is provided with a scale.

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