Anti-skid and anti-deflection piston ring installation expansion tool

Abstract

The utility model relates to an anti -skidding anti -deflection piston ring installation expansion tool, including the body of pincers, arc guide plate, the body of pincers includes two press bars, and the rotation is connected between two press bars, and the end of two press bars is connected with the connecting rod, and every connecting rod is fixedly connected with arc shell body, and two arc shell bodies are slidably connected with the outside of arc guide plate, and the side of two arc shell bodies is fixed with the support block, and the both ends of arc guide plate are fixedly connected with the limit block. When using, two support blocks are put into the gap of piston ring, and the end of two press bars is clamped, and two arc shell bodies move along arc guide plate in the opposite direction, so that two support blocks prop open the piston ring. Since the support block moves along the arc shell body along the arc guide plate rather than linearly, the skidding phenomenon can be reduced. The end of support block is provided with a right-angle bending, and the gap end of piston ring is put into the hook, so that the operation is more stable, and the skidding is prevented.

Description

Technical Field

[0001] This utility model relates to the field of cylinder assembly and disassembly technology, and in particular to a piston ring installation expansion tool that is anti-slip and anti-deflection. Background Technology

[0002] The piston, as a key component of the engine, is responsible for reciprocating motion and is an indispensable core component in the cylinder block of a car engine. The piston rings on the outside of the piston serve a sealing function. When installing or removing piston rings from the piston, a piston ring expander is needed. The piston ring expander is used to enlarge the notch on the piston ring by interlocking with it, thereby making the piston ring easier to install and remove.

[0003] When a traditional expander expands the piston ring notch, the jaws at the end of the expander move linearly along the tangent of the piston ring. However, the movement direction at both ends of the piston ring notch is not linear. Therefore, the jaws move relative to the piston ring, and the jaws are prone to slippage, which can scratch the piston ring plating. This makes it unsuitable for installing large piston rings.

[0004] Therefore, a piston ring mounting expansion tool with anti-slip and anti-deflection properties is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing a piston ring installation and expansion tool that is anti-slip and anti-deflection.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A piston ring installation expansion tool with anti-slip and anti-deflection features, including a clamp body and an arc-shaped guide plate. The clamp body includes two pressure rods that are rotatably connected to each other. Each end of the two pressure rods is connected to a connecting rod. An arc-shaped housing is fixedly connected to each connecting rod. The two arc-shaped housings are slidably connected to the outside of the arc-shaped guide plate. A support block is fixed on the side of the two arc-shaped housings that are close to each other. Limit blocks are fixedly connected to both ends of the arc-shaped guide plate.

[0007] Preferably, the aforementioned anti-slip and anti-deflection piston ring mounting expansion tool has a hook at the end of the support block.

[0008] Preferably, the aforementioned anti-slip and anti-deflection piston ring mounting expansion tool is wherein the hook is a right-angle bend.

[0009] Preferably, the aforementioned anti-slip and anti-deflection piston ring mounting expansion tool includes an elastic element in the clamp body, a connecting handle is fixed on the side of each of the two pressure rods that are close to each other, a pin is inserted between the two connecting handles, the connecting handle is rotatably connected to the pin, and an elastic element is connected between the two pressure rods.

[0010] Preferably, the aforementioned anti-slip and anti-deflection piston ring mounting expansion tool is wherein the connecting rod is perpendicular to the pressure rod, and the connecting rod is rotatably connected to the pressure rod.

[0011] Preferably, in the above-mentioned anti-slip and anti-deflection piston ring mounting expansion tool, a second limiting post is penetrated through one end of the arc-shaped housing, and an oblong hole is provided on the connecting rod along the axial direction. The second limiting post passes through the oblong hole, the width of the oblong hole is the same as the cross-sectional diameter of the second limiting post, and the second limiting post is slidably connected to the oblong hole.

[0012] Preferably, in the aforementioned anti-slip and anti-deflection piston ring mounting expansion tool, two first limiting posts penetrate the other end of the arc-shaped housing, and the two first limiting posts are located on both sides of the arc-shaped guide plate.

[0013] Preferably, the aforementioned anti-slip and anti-deflection piston ring mounting expansion tool is provided with an anti-slip sleeve on the gripping end of the pressure rod.

[0014] Preferably, the aforementioned anti-slip and anti-deflection piston ring mounting expansion tool is provided with an extension tube slidably connected to the end of the pressure rod.

[0015] The beneficial effects of this invention are as follows: In use, two support blocks are placed into the piston ring notch, and the ends of two pressure rods are clamped. The other end of the pressure rods drives the connecting rod to move, causing the two arc-shaped housings to move backward along the arc-shaped guide plate, thereby allowing the two support blocks to open the piston ring. Because the support blocks move along the arc-shaped guide plate with the arc-shaped housings rather than in a straight line, and this direction of movement is similar to the direction of movement when the piston ring notch expands, slippage is greatly reduced, preventing ring deflection during installation and achieving damage-free expansion of the piston ring. The ends of the support blocks are provided with right-angle bends, with the piston ring notch end placed inside the bends, making operation more stable and preventing slippage. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a front view of the present invention;

[0018] Figure 3 This is a top view of the present invention.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Pressure rod, 2. Connecting rod, 3. Arc-shaped shell, 4. Support block, 5. Arc-shaped guide plate, 6. Limiting block, 7. First limiting post, 8. Elastic element, 9. Pin, 10. Connecting handle, 11. Second limiting post. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0022] like Figures 1-3 As shown, a piston ring installation expansion tool with anti-slip and anti-deflection features includes a clamp body and an arc-shaped guide plate 5. The clamp body includes two pressure rods 1, which are bent outwards. The clamp body also includes an elastic element 8, which is a spring. Both ends of the elastic element 8 are connected to the two pressure rods 1, and the elastic element 8 can automatically reset the clamp body. The two pressure rods 1 are rotatably connected. Specifically, a connecting handle 10 is fixed on the side of the two pressure rods 1 that are close to each other. A pin 9 passes through the two connecting handles 10, and the connecting handles 10 are rotatably connected to the pin 9.

[0023] Both pressure rods 1 are connected to connecting rods 2 at their ends, and the connecting rods 2 are rotatably connected to the pressure rods 1. The connecting rods 2 are perpendicular to the pressure rods 1. When the two pressure rods 1 are clamped, the connecting rods 2 and pressure rods 1 rotate relative to each other, but the connecting rods 2 and pressure rods 1 remain perpendicular. Each connecting rod 2 is fixedly connected to an arc-shaped housing 3. The two arc-shaped housings 3 are slidably connected to the outside of the arc-shaped guide plate 5. A support block 4 is fixed on the side of the two arc-shaped housings 3 that are close to each other. The support block 4 is used to insert into the piston ring notch and open it. When the two pressure rods 1 are clamped, the two connecting rods 2 drive the two arc-shaped housings 3 to move along the arc-shaped guide plate 5. Since the support block 4 moves along the arc-shaped guide plate 5 with the arc-shaped housings 3 rather than in a straight line, and this direction of movement is similar to the direction of movement when the piston ring notch expands at both ends, slippage can be greatly reduced. Furthermore, the end of the support block 4 is provided with a hook. The hook is bent at a right angle. The piston ring notch end is placed in the hook, which makes the operation more stable and prevents slippage.

[0024] A second limiting post 11 passes through the interior of one end of the arc-shaped housing 3. An oblong hole is provided axially on the connecting rod 2, through which the second limiting post 11 passes. The width of the oblong hole is the same as the cross-sectional diameter of the second limiting post 11, and the second limiting post 11 is slidably connected to the oblong hole. When the clamp opens, the two connecting rods 2 move to both sides, while the second limiting post 11 can slide relative to the oblong hole, ensuring that the arc-shaped housing 3 can move smoothly along the arc-shaped guide plate 5 and preventing jamming. Two first limiting posts 7 pass through the interior of the other end of the arc-shaped housing 3. The two first limiting posts 7 are located on both sides of the arc-shaped guide plate 5, and the arc-shaped guide plate 5 is located between the second limiting post 11 and the support block 4, thus limiting the movement of both ends of the arc-shaped housing 3, fixing its movement path, and allowing it to slide only along the arc-shaped guide plate 5.

[0025] Both ends of the arc-shaped guide plate 5 are fixedly connected to limit blocks 6. The limit blocks 6 are used to limit the movement range of the arc-shaped housing 3 to prevent the piston ring from being stretched too much and exceeding its elastic limit, thereby causing the piston ring to deform after installation.

[0026] The gripping end of the lever 1 is fitted with an anti-slip sleeve to facilitate gripping and prevent hand slippage.

[0027] An extension tube is slidably connected to the end of the pressure rod 1. When the clamp body needs greater tension to open the piston ring, the extension tube can be extended and held by hand, thereby increasing the lever arm length of the pressure rod 1, increasing the torque, and making it easier to open the piston ring.

[0028] In use, place the two support blocks 4 into the piston ring notch, clamp the ends of the two pressure rods 1, and the other end of the pressure rods 1 will drive the connecting rod 2 to move, causing the two arc-shaped housings 3 to move back and forth along the arc-shaped guide plate 5, thereby causing the two support blocks 4 to open the piston ring.

[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only 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 a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., 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 communication between 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.

[0031] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An anti-skid, anti-deflection piston ring installation expander tool characterized by: The utility model relates to a clamp body, arc guide plate (5), the clamp body includes two press bars (1), two press bars (1) are rotatably connected between, the end of two press bars (1) is connected with connecting rod (2), each connecting rod (2) is fixedly connected with arc shell (3), two arc shell (3) are slidably connected with the outside of arc guide plate (5), two arc shell (3) are fixed with support block (4) on the side of mutual approach, the both ends of arc guide plate (5) are fixedly connected with limiting block (6), connecting rod (2) is perpendicular with press bar (1), and connecting rod (2) is rotatably connected with press bar (1).

2. The anti-slip, anti-deflecting piston ring installation expander tool of claim 1, wherein: The end of the support block (4) is provided with a hook.

3. The anti-slip, anti-deflecting piston ring installation expander tool of claim 2, wherein: The hook is a right-angle bent shape.

4. The anti-slip, anti-deflecting piston ring installation expander tool of claim 1, wherein: The clamp body further comprises an elastic member (8), both sides of the two press bars (1) are fixed with connecting handles (10), a pin shaft (9) is penetrated between the two connecting handles (10), the connecting handle (10) is rotatably connected with the pin shaft (9), and the two press bars (1) are connected with the elastic member (8).

5. The anti-slip, anti-deflecting piston ring installation expander tool of claim 1, wherein: One end of the arc shell (3) is internally penetrated with a second limiting column (11), the connecting rod (2) is provided with a waist round hole in the axial direction, the second limiting column (11) passes through the waist round hole, the width of the waist round hole is the same as the cross-sectional diameter of the second limiting column (11), and the second limiting column (11) is slidably connected with the waist round hole.

6. The anti-slip, anti-deflecting piston ring installation expander tool of claim 5, wherein: The other end of the arc shell (3) is internally penetrated with two first limiting columns (7), and the two first limiting columns (7) are located on both sides of the arc guide plate (5).

7. The anti-slip, anti-deflecting piston ring installation expander tool of claim 1, wherein: The holding end of the press bar (1) is sleeved with an antiskid sleeve.

8. The anti-slip, anti-deflecting piston ring installation expander tool of claim 1, wherein: The end of the press bar (1) is slidably connected with an extension tube.

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