Special tool for installing valve oil seal of engine

Abstract

The utility model discloses a special tool for installing an engine valve oil seal, which comprises a stabilizing plate, the outer side of the stabilizing plate is provided with an installing mechanism, the installing mechanism comprises a moving column, the outer side of the moving column is connected with a lifting frame in a sliding manner, the top of the lifting frame is fixedly connected with a workpiece clamping ring, and the workpiece clamping ring is fixedly connected with a workpiece. An electric telescopic rod is fixedly connected to the interior of the lifting frame, a pushing rod is fixedly connected to the bottom of the electric telescopic rod, a sliding disc is fixedly connected to the bottom of the pushing rod, and a sliding groove is formed in the inner wall of the moving column. The lifting frame drives the workpiece clamping ring to drive the oil seal to move to an area where the oil seal needs to be installed, then the electric telescopic rod is started to drive the pushing rod to move, at the moment, the pushing rod can drive the sliding disc to push the oil seal to the engine valve installation position, and the effect of efficient installation is achieved.

Description

Technical Field

[0001] This utility model relates to the field of engine valve stem seal installation technology, specifically a special tool for installing engine valve stem seals. Background Technology

[0002] Engine valve stem seals are one of the important components of the engine valve assembly. They are generally made of an outer skeleton and fluororubber through co-curing. A self-tightening spring or steel wire is installed at the diameter. The purpose is to prevent engine oil from entering the intake and exhaust pipes, avoid oil loss, prevent engine oil from entering the combustion chamber, reduce oil consumption, prevent leakage of gasoline-air mixture and exhaust gas, and ensure normal combustion and operation of the engine.

[0003] According to the "Installation Fixture for Engine Valve Oil Seals" disclosed in the authorized patent publication number CN201721849798.2, this utility model can easily and simply ensure the angle between the valve oil seal and the valve guide, ensuring the installation requirements of the valve oil seal, and is not easy to damage the valve oil seal. However, in the process of use, because the space for installing the oil seal is relatively small, when installing oil seals deep in the air, it is not possible to move them to the installation position, resulting in low installation efficiency.

[0004] Therefore, this utility model provides a special tool for installing engine valve stem seals. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a special tool for installing engine valve stem seals, thereby solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a special tool for installing engine valve stem seals, including a stabilizing plate, wherein an installation mechanism is provided on the outer side of the stabilizing plate;

[0007] The installation mechanism includes a movable column, a lifting frame slidably connected to the outer side of the movable column, a workpiece retaining ring fixedly connected to the top of the lifting frame, an electric telescopic rod fixedly connected inside the lifting frame, a push rod fixedly connected to the bottom of the electric telescopic rod, a sliding plate fixedly connected to the bottom of the push rod, a groove formed in the inner wall of the movable column, a connecting rod slidably connected inside the groove, and a return spring fixedly connected to the top of the connecting rod.

[0008] Preferably, the stabilizing plate has a movable groove inside, a movable block is slidably connected to the top of the stabilizing plate, a movable column is fixedly connected below the movable block and slidably connected inside the movable groove, a threaded tube is fixedly connected to the top of the movable block, a screw is threadedly connected inside the threaded tube, and a rotating cover is fixedly connected to the top of the screw.

[0009] Preferably, a positioning mechanism is provided on the outer side of the movable block. The positioning mechanism includes an L-shaped plate, a rubber ring is fixedly connected to the outer side of the L-shaped plate, a transmission rod is slidably engaged inside the rubber ring, a fixing rod is fixedly connected to the bottom of the transmission rod, and a limit plate is fixedly connected to the bottom of the fixing rod.

[0010] Preferably, the movable column is slidably connected to the inside of the movable groove via a movable block, and the inside of the movable column is hollow. Because the inside of the movable column is hollow, the screw can move downward inside the movable column.

[0011] Preferably, the screw is rotatably connected to the inside of the threaded tube via a rotating cover, and the bottom of the screw is located below the moving column. The rotating cover drives the screw to rotate inside the threaded tube, thereby causing the screw to move downward inside the threaded tube.

[0012] Preferably, the top of the return spring is fixedly connected to the inner top wall of the slide groove, and the lifting frame is movably connected to the outside of the moving column through a connecting rod. When the screw moves downward, it can push the electric telescopic rod, thereby causing the lifting frame to move downward on the outside of the moving column.

[0013] Preferably, the L-shaped plates are symmetrically distributed on the outside of the moving block, and the limiting plate is movably connected to the bottom of the rubber ring through a fixing rod. The transmission rod slides inside the rubber ring with a certain resistance, so that the limiting plate can be stably connected to the bottom of the stabilizing plate.

[0014] Preferably, the limiting plates are symmetrically distributed on the outside of the stabilizing plate, and the limiting plates are attached to the bottom of the stabilizing plate. When the limiting plates move to the bottom of the stabilizing plate, they can be tightly connected to the stabilizing plate, thus enabling the positioning of the moving block at the top of the stabilizing plate.

[0015] Beneficial effects

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This special tool for installing engine valve stem seals first involves installing the stabilizing plate at the seal installation position. The seal body then engages with the workpiece retaining ring. A rotating cover drives the screw to rotate inside the threaded tube, causing it to move downwards. This screw pushes the electric telescopic rod, which in turn moves the lifting frame, workpiece retaining ring, and seal to the desired installation area. Activating the electric telescopic rod then moves the push rod, which in turn pushes the sliding disc to the engine valve installation position, achieving efficient installation.

[0018] 2. This special tool for installing engine valve stem seals allows for easy adjustment of the installation position. First, the transmission rod moves the limiting plate at the bottom of the fixing rod, causing it to move out from under the stabilizing plate. Then, the moving block moves at the top of the stabilizing plate, which in turn moves the moving column, thus changing the position of the workpiece retaining ring. When it reaches the desired position, the transmission rod moves inside the rubber ring, causing the limiting plate to move back under the stabilizing plate. This allows for convenient installation of valve stem seals in different positions. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a schematic diagram of the outer side of the lifting frame of this utility model;

[0021] Figure 3 This is a schematic diagram of the outer structure of the positioning mechanism of this utility model;

[0022] Figure 4 This is a utility model Figure 1 Enlarged view of the structure at point A in the middle.

[0023] In the diagram: 1. Stabilizing plate; 2. Mounting mechanism; 21. Moving groove; 22. Moving block; 23. Threaded pipe; 24. Screw; 25. Rotating cover; 26. Moving column; 27. Lifting frame; 28. Workpiece clamping ring; 29. ​​Electric telescopic rod; 210. Push rod; 211. Sliding disc; 212. Slide groove; 213. Connecting rod; 214. Return spring; 3. Positioning mechanism; 31. L-shaped plate; 32. Rubber ring; 33. Transmission rod; 34. Fixing rod; 35. Limiting plate. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 A special tool for installing engine valve stem seals includes a stabilizing plate 1, and an installation mechanism 2 is provided on the outer side of the stabilizing plate 1.

[0026] The installation mechanism 2 includes a movable column 26, a lifting frame 27 slidably connected to the outside of the movable column 26, a workpiece retaining ring 28 fixedly connected to the top of the lifting frame 27, an electric telescopic rod 29 fixedly connected inside the lifting frame 27, a push rod 210 fixedly connected to the bottom of the electric telescopic rod 29, a sliding plate 211 fixedly connected to the bottom of the push rod 210, a groove 212 is provided in the inner wall of the movable column 26, a connecting rod 213 is slidably connected inside the groove 212, and a return spring 214 is fixedly connected to the top of the connecting rod 213.

[0027] Furthermore: the interior of the stabilizing plate 1 is provided with a moving groove 21, the top of the stabilizing plate 1 is slidably connected to a moving block 22, the moving column 26 is fixedly connected to the bottom of the moving block 22 and slidably connected to the interior of the moving groove 21, the top of the moving block 22 is fixedly connected to a threaded tube 23, the interior of the threaded tube 23 is threadedly connected to a screw 24, and the top of the screw 24 is fixedly connected to a rotating cover 25.

[0028] It should be noted that: the movable column 26 is slidably connected to the inside of the movable groove 21 through the movable block 22, and the inside of the movable column 26 is hollow; the screw 24 is rotatably connected to the inside of the threaded tube 23 through the rotating cover 25, and the bottom of the screw 24 is located below the movable column 26; the top of the return spring 214 is fixedly connected to the inner top wall of the slide groove 212; and the lifting frame 27 is movably connected to the outside of the movable column 26 through the connecting rod 213.

[0029] Specifically: Since the interior of the movable column 26 is hollow, the screw 24 can move downward inside the movable column 26. The rotating cover 25 drives the screw 24 to rotate inside the threaded tube 23, thereby causing the screw 24 to move downward inside the threaded tube 23. When the screw 24 moves downward, it can push the electric telescopic rod 29, thereby causing the lifting frame 27 to move downward outside the movable column 26.

[0030] As a further improvement of this utility model, a positioning mechanism 3 is provided on the outer side of the moving block 22. The positioning mechanism 3 includes an L-shaped plate 31. A rubber ring 32 is fixedly connected to the outer side of the L-shaped plate 31. A transmission rod 33 is slidably engaged inside the rubber ring 32. A fixing rod 34 is fixedly connected to the bottom of the transmission rod 33. A limit plate 35 is fixedly connected to the bottom of the fixing rod 34.

[0031] Furthermore: L-shaped plates 31 are symmetrically distributed on the outside of the moving block 22, and limiting plates 35 are movably connected to the bottom of the rubber ring 32 through fixing rods 34. The limiting plates 35 are symmetrically distributed on the outside of the stabilizing plate 1, and the limiting plates 35 are in contact with the bottom of the stabilizing plate 1.

[0032] It should be noted that the transmission rod 33 has a certain resistance when sliding inside the rubber ring 32, so that the limiting plate 35 can be stably connected to the bottom of the stabilizing plate 1. When the limiting plate 35 moves to the bottom of the stabilizing plate 1, it can be tightly connected to the stabilizing plate 1, so that the moving block 22 at the top of the stabilizing plate 1 can be positioned.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] Working principle: First, the stabilizing plate 1 is installed at the oil seal installation position. At this time, the oil seal body is engaged inside the workpiece retaining ring 28. The rotating cover 25 drives the screw 24 to rotate inside the threaded tube 23, thereby causing the screw 24 to move downward inside the threaded tube 23. At this time, the screw 24 will push the electric telescopic rod 29, thereby causing the lifting frame 27 to move the workpiece retaining ring 28 and the oil seal to the area to be installed. Then, by activating the electric telescopic rod 29, the electric telescopic rod 29 drives the push rod 210 to move. At this time, the push rod 210 can drive the sliding plate 211 to push the oil seal to the engine valve installation position. This achieves efficient installation. When the installation position needs to be adjusted, the transmission rod 33 first moves the limiting plate 35 at the bottom of the fixed rod 34, causing the limiting plate 35 to move out from under the stabilizing plate 1. Then, the moving block 22 moves on top of the stabilizing plate 1, causing the moving block 22 to move the moving column 26, thereby changing the position of the workpiece retaining ring 28. When it moves to the required position, the transmission rod 33 moves inside the rubber ring 32, causing the limiting plate 35 to move back to under the stabilizing plate 1, thus achieving the effect of conveniently installing valve stem seals in different positions.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special tool for installing engine valve stem seals, comprising a stabilizing plate (1), characterized in that: An installation mechanism (2) is provided on the outer side of the stabilizing plate (1); The installation mechanism (2) includes a movable column (26), a lifting frame (27) is slidably connected to the outside of the movable column (26), a workpiece retaining ring (28) is fixedly connected to the top of the lifting frame (27), an electric telescopic rod (29) is fixedly connected to the inside of the lifting frame (27), a push rod (210) is fixedly connected to the bottom of the electric telescopic rod (29), a sliding plate (211) is fixedly connected to the bottom of the push rod (210), a sliding groove (212) is provided in the inner wall of the movable column (26), a connecting rod (213) is slidably connected to the inside of the sliding groove (212), and a return spring (214) is fixedly connected to the top of the connecting rod (213).

2. The special tool for installing engine valve stem seals according to claim 1, characterized in that: The stabilizing plate (1) has a moving groove (21) inside. A moving block (22) is slidably connected to the top of the stabilizing plate (1). A moving column (26) is fixedly connected to the bottom of the moving block (22) and slidably connected to the inside of the moving groove (21). A threaded tube (23) is fixedly connected to the top of the moving block (22). A screw (24) is threadedly connected inside the threaded tube (23). A rotating cover (25) is fixedly connected to the top of the screw (24).

3. The special tool for installing engine valve stem seals according to claim 2, characterized in that: A positioning mechanism (3) is provided on the outside of the moving block (22). The positioning mechanism (3) includes an L-shaped plate (31). A rubber ring (32) is fixedly connected to the outside of the L-shaped plate (31). A transmission rod (33) is slidably engaged inside the rubber ring (32). A fixing rod (34) is fixedly connected to the bottom of the transmission rod (33). A limit plate (35) is fixedly connected to the bottom of the fixing rod (34).

4. A special tool for installing engine valve stem seals according to claim 2, characterized in that: The movable column (26) is slidably connected to the inside of the movable groove (21) via the movable block (22), and the inside of the movable column (26) is hollow.

5. A special tool for installing engine valve stem seals according to claim 2, characterized in that: The screw (24) is rotatably connected to the inside of the threaded tube (23) via a rotating cover (25), and the bottom of the screw (24) is located below the moving column (26).

6. The special tool for installing engine valve stem seals according to claim 2, characterized in that: The top of the return spring (214) is fixedly connected to the inner top wall of the slide groove (212), and the lifting frame (27) is movably connected to the outside of the moving column (26) through the connecting rod (213).

7. A special tool for installing engine valve stem seals according to claim 3, characterized in that: The L-shaped plates (31) are symmetrically distributed on the outside of the moving block (22), and the limiting plate (35) is movably connected to the bottom of the rubber ring (32) through the fixing rod (34).

8. A special tool for installing engine valve stem seals according to claim 3, characterized in that: The limiting plates (35) are symmetrically distributed on the outside of the stabilizing plate (1), and the limiting plates (35) are attached to the bottom of the stabilizing plate (1).

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